artful, adroit, shrewd, astute, crafty
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Nix
A three-letter word that means "exist" is almost always "are." See if it will work.
A three-letter word ending in "ux" is "lux," which means a unit of illumination or light.
That is a very shrewd lady. Shrewd means filthy or harsh or mean or dirty. The young woman is very shrewd when shopping.
The three later word that means view is see.
p ussy
artful, adroit, shrewd, astute, crafty
I think the word you are looking for is Shrewd.
The word shrewd has one syllable.
A three letter word that could mean clever is sly.
Observe means to see.
The boy was shrewd and copied the answers.
jab
see
hit