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Mostly vs. Mainly: Know the Difference

Shumaila Saeed
By Shumaila Saeed || Updated on December 25, 2023
Mostly implies a large proportion or majority of something, whereas mainly refers to the primary or most significant aspect.
Mostly vs. Mainly

Key Differences

Mostly is used to indicate that something is true or applicable in a large majority of cases. In contrast, mainly is used to signify that something is of primary importance or is the chief part among other parts. Both words are used to emphasize the predominant aspect of a situation or object.
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Shumaila Saeed
Nov 29, 2023
While mostly suggests a quantitative dominance, mainly emphasizes the qualitative aspect or the essence of something. Mostly is often used in contexts where the emphasis is on the larger part of a whole, whereas mainly is used to highlight the most significant or primary element. Both terms, however, are used to focus attention on a particular aspect.
Shumaila Saeed
Shumaila Saeed
Nov 29, 2023
Mostly is commonly employed to describe a general trend or a prevalent condition, indicating that something is true to a great extent but not absolutely. Mainly, on the other hand, is used to point out the principal cause, reason, or factor among others. Both words help in specifying focus but in slightly different contexts.
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Shumaila Saeed
Nov 29, 2023
In usage, mostly is often applied in a more informal or general sense, whereas mainly is used in contexts requiring a more specific or focused description. Mostly might be used to describe the overall character of something, while mainly is more apt for highlighting the most important or significant part.
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Shumaila Saeed
Nov 29, 2023
Mostly is suited for situations where the majority is being considered, without necessarily excluding the minority aspects. Mainly is more exclusive, tending to single out one primary factor or aspect over others. Both terms, though similar, have distinct connotations and are used to convey subtly different meanings.
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Shumaila Saeed
Nov 29, 2023
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Comparison Chart

Focus

Emphasizes the larger part or majority.
Highlights the most significant or primary aspect.
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Nov 29, 2023

Usage Context

General trend or condition.
Principal cause or reason.
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Nov 29, 2023

Formality

More informal and broad.
More specific and focused.
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Nov 29, 2023

Exclusivity

Inclusive of majority, not excluding minority.
More exclusive, singling out the primary aspect.
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Nov 29, 2023

Implication

Quantitative dominance.
Qualitative importance.
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Nov 29, 2023
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Mostly and Mainly Definitions

Mostly

Primarily; chiefly.
The book is mostly about his early life.
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Nov 23, 2023

Mainly

Chiefly; primarily.
The course focuses mainly on European history.
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Nov 23, 2023

Mostly

For the most part; mainly.
The audience was mostly adults.
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Nov 23, 2023

Mainly

Particularly; more than anything else.
The project is mainly her initiative.
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Nov 23, 2023

Mostly

In large measure; principally.
The students are mostly interested in sports.
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Nov 23, 2023
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Mainly

Essentially; above all.
The problem is mainly a lack of funding.
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Nov 23, 2023

Mostly

In the greater part or number.
The participants were mostly women.
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Nov 23, 2023

Mainly

For the most important part.
The discussion was mainly about the budget.
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Nov 23, 2023

Mostly

For the greatest part; mainly.
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Oct 19, 2023

Mainly

Predominantly; especially.
He is mainly known for his novels.
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Nov 23, 2023

Mostly

Generally; usually.
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Oct 19, 2023

Mainly

For the most part; chiefly.
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Oct 19, 2023

Mostly

Mainly or chiefly; for the most part; usually, generally, on the whole.
They're mostly good people, although they have made a few mistakes.
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Shumaila Saeed
Oct 19, 2023

Mainly

Chiefly; for the most part.
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Shumaila Saeed
Oct 19, 2023

Mostly

(obsolete) To the greatest extent; most.
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Shumaila Saeed
Oct 19, 2023

Mainly

(obsolete) Forcefully, vigorously.
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Oct 19, 2023

Mostly

For the greatest part; for the most part; chiefly; in the main.
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Oct 19, 2023

Mainly

(obsolete) Of the production of a sound: loudly, powerfully.
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Shumaila Saeed
Oct 19, 2023

Mostly

In large part; mainly or chiefly;
These accounts are largely inactive
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Oct 19, 2023

Mainly

(obsolete) To a great degree; very much.
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Shumaila Saeed
Oct 19, 2023

Mostly

Usually; as a rule;
By and large it doesn't rain much here
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Oct 19, 2023

Mainly

Very strongly; mightily; to a great degree.
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Shumaila Saeed
Oct 19, 2023

Mainly

Principally; chiefly.
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Oct 19, 2023

Mainly

For the most part;
He is mainly interested in butterflies
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Shumaila Saeed
Oct 19, 2023

Repeatedly Asked Queries

How is mainly used?

Mainly is used to indicate the primary or chief aspect of something.
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Shumaila Saeed
Nov 29, 2023

Does mainly imply exclusivity?

Mainly tends to focus on the most significant aspect, often implying exclusivity.
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Shumaila Saeed
Nov 29, 2023

Is mostly quantitative or qualitative?

Mostly is more quantitative, referring to a larger part.
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Shumaila Saeed
Nov 29, 2023

Is mostly formal or informal in usage?

Mostly is more informal and broad in usage.
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Shumaila Saeed
Nov 29, 2023

What does mostly mean?

Mostly means for the most part or in large measure.
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Shumaila Saeed
Nov 29, 2023

What kind of emphasis does mostly provide?

Mostly emphasizes a predominant quantity or occurrence.
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Shumaila Saeed
Nov 29, 2023

Can mostly and mainly be used interchangeably?

They can sometimes be used interchangeably, but they have distinct nuances.
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Shumaila Saeed
Nov 29, 2023

How does mostly relate to a majority?

Mostly relates to the greater part or number in a situation.
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Shumaila Saeed
Nov 29, 2023

Does mainly emphasize quality or quantity?

Mainly emphasizes the quality or significance of the primary aspect.
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Shumaila Saeed
Nov 29, 2023

Does mainly point out the essence of something?

Yes, mainly points out the most important or significant part.
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Shumaila Saeed
Nov 29, 2023

How does mainly differ in connotation from mostly?

Mainly has a connotation of focusing on the essence, unlike the broader mostly.
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Shumaila Saeed
Nov 29, 2023

Can mostly refer to a general trend?

Yes, mostly can describe a general trend or condition.
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Shumaila Saeed
Nov 29, 2023

Is mainly used for specific or general situations?

Mainly is used for more specific situations, highlighting the primary aspect.
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Shumaila Saeed
Nov 29, 2023

Can mostly be applied to general characterizations?

Yes, mostly is suited for describing the overall character of something.
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Shumaila Saeed
Nov 29, 2023

Does mostly imply a total or partial condition?

Mostly implies a condition that is true to a great extent but not totally.
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Shumaila Saeed
Nov 29, 2023

Are there contexts where mostly and mainly cannot be exchanged?

Yes, there are contexts where their subtle differences make them non-interchangeable.
Shumaila Saeed
Shumaila Saeed
Nov 29, 2023

Is mainly apt for detailed or broad descriptions?

Mainly is more apt for detailed, focused descriptions.
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Shumaila Saeed
Nov 29, 2023

Can mainly be used to highlight a principal cause?

Yes, mainly is often used to highlight a principal cause or factor.
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Shumaila Saeed
Nov 29, 2023

How does mostly interact with minority aspects?

Mostly includes the majority but doesn’t necessarily exclude minority aspects.
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Shumaila Saeed
Nov 29, 2023

What kind of descriptions does mainly suit?

Mainly suits descriptions needing focus on the most important aspect.
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Shumaila Saeed
Nov 29, 2023

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About Author
Shumaila Saeed
Written by
Shumaila Saeed
Shumaila Saeed, an expert content creator with 6 years of experience, specializes in distilling complex topics into easily digestible comparisons, shining a light on the nuances that both inform and educate readers with clarity and accuracy.

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