Expand vs. Expound

Difference Between Expand and Expound
Expandverb
(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.Expoundverb
(transitive) To set out the meaning of; to explain or discuss at length
Expandverb
(transitive) To increase the extent, number, volume or scope of (something).
A flower expands its leaves.Expoundverb
(intransitive) To make a statement, especially at length.
He expounded often on the dangers of the imperial presidency.Expandverb
(transitive) To express (something) at length and/or in detail.
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 rewrite (an expression) as a longer, yet equivalent sum of terms.
Use the binomial theorem to expandx4 + 4x3 + 6x2 + 4x + 1.Expoundverb
state;
set forth one's reasonsExpandverb
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