Mere vs. Pond: What's the Difference?

Mere and Pond Definitions
Mere
Being nothing more than what is specified
A mere child.
A mere 50 cents an hour.
Pond
A still body of water smaller than a lake.
Mere
Considered apart from anything else
Shocked by the mere idea.
Pond
To form ponds or large puddles
Debris blocked the culvert, and the stream began to pond.
Mere
Small; slight
Could detect only the merest whisper.
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Pond
To cause to form ponds or large puddles
The landslide ponded the stream.
Mere
(Obsolete) Pure; unadulterated.
Pond
To form ponds or large puddles on (a piece of land).
Mere
A small lake, pond, or marsh
"Sometimes on lonely mountain meres / I find a magic bark" (Tennyson).
Pond
An inland body of standing water, either natural or man-made, that is smaller than a lake.
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Mere
Just, only; no more than, pure and simple, neither more nor better than might be expected.
Pond
An inland body of standing water of any size that is fed by springs rather than by a river.
Mere
(obsolete) Pure, unalloyed .
Pond
(colloquial) The Atlantic Ocean. Especially in across the pond.
I wonder how they do this on the other side of the pond.
I haven't been back home across the pond in twenty years.
Mere
(obsolete) Nothing less than; complete, downright .
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Pond
(transitive) To block the flow of water so that it can escape only through evaporation or seepage; to dam.
Mere
Boundary, limit; a boundary-marker; boundary-line.
Pond
(transitive) To make into a pond; to collect, as water, in a pond by damming.
Mere
A body of standing water, such as a lake or a pond. More specifically, it can refer to a lake that is broad in relation to its depth. Also included in place names such as Windermere.
Pond
(intransitive) To form a pond; to pool.
Mere
(obsolete) mayor and {{en}}.
Pond
To ponder.
Mere
A Maori war-club.
Pond
A body of water, naturally or artificially confined, and usually of less extent than a lake.
Mere
To limit; bound; divide or cause division in.
Pond
To make into a pond; to collect, as water, in a pond by damming.
Mere
To set divisions and bounds.
Pond
To ponder.
Pleaseth you, pond your suppliant's plaint.
Mere
(cartography) To decide upon the position of a boundary; to position it on a map.
Pond
A small lake;
The pond was too small for sailing
Mere
A pool or lake.
Mere
A boundary.
Mere
A mare.
Mere
To divide, limit, or bound.
Which meared her rule with Africa.
Mere
Unmixed; pure; entire; absolute; unqualified.
Then entered they the mere, main sea.
The sorrows of this world would be mere and unmixed.
Mere
Only this, and nothing else; such, and no more; simple; bare; as, a mere boy; a mere form.
From mere success nothing can be concluded in favor of any nation.
Mere
A small pond of standing water
Mere
Being nothing more than specified;
A mere child
Mere
Apart from anything else; without additions or modifications;
Only the bare facts
Shocked by the mere idea
The simple passage of time was enough
The simple truth