Expand vs. Expound

Difference Between Expand and Expound
Expandverb
To increase the size, volume, quantity, or scope of; enlarge
expanded her store by adding a second room.Expoundverb
To explain in detail; elucidate
She expounded her theory on the origin of the conflict.Expandverb
To express at length or in detail; enlarge on
expanded his remarks afterward.Expoundverb
To make known or set forth; present
"In the 1956 campaign he cheerfully expounded views that had gravely disturbed him four years earlier" (Helen Sasson).Expandverb
To open (something) up or out; spread out
The bird expanded its wings and flew off.Expoundverb
To make a detailed statement
The professor was expounding on a favorite topic.Expandverb
(Mathematics) To write (a quantity) as a sum of terms in an extended form.
Expoundverb
(transitive) To set out the meaning of; to explain or discuss at length
Expandverb
To become greater in size, volume, quantity, or scope
Air expands when heated. This critic's influence is expanding.Expoundverb
(intransitive) To make a statement, especially at length.
He expounded often on the dangers of the imperial presidency.Expandverb
To speak or write at length or in detail
expand on a favorite topic.Expoundverb
add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing;
She elaborated on the main ideas in her dissertationExpandverb
To open up or out; unfold
The chair expands to form a daybed.Expoundverb
state;
set forth one's reasonsExpandverb
(transitive) To change (something) from a smaller form and/or size to a larger one; to spread out or lay open.
You can expand this compact umbrella to cover a large table.Expandverb
(transitive) To increase the extent, number, volume or scope of (something).
A flower expands its leaves.Expandverb
(transitive) To express (something) at length and/or in detail.
Expandverb
To rewrite (an expression) as a longer, yet equivalent sum of terms.
Use the binomial theorem to expandx4 + 4x3 + 6x2 + 4x + 1.Expandverb
To multiply both the numerator and the denominator of a fraction by the same natural number yielding a fraction of equal value
Expandverb
(intransitive) To (be) change(d) from a smaller form/size to a larger one.
Many materials expand when heated.This compact umbrella expands to cover a large table.Expandverb
(intransitive) To (be) increase(d) in extent, number, volume or scope.
Expandverb
(intransitive) To speak or write at length or in detail.
He's so pedantic, he expands on everything!Expandverb
(intransitive) To feel generous or optimistic.
Expandverb
extend in one or more directions;
The dough expandsExpandverb
become larger in size or volume or quantity;
his business expanded rapidlyExpandverb
make bigger or wider in size, volume, or quantity;
expand the house by adding another wingExpandverb
grow stronger;
The economy was boomingExpandverb
exaggerate or make bigger;
The charges were inflatedExpandverb
add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing;
She elaborated on the main ideas in her dissertationExpandverb
expand the influence of;
The King extended his rule to the Eastern part of the continent