Try gut.
tar
They all have 3 letters, but "red" and "tan" have exactly 3 letters.
Lev Tolstoy (was a Russian novelist)
Afghanistan.
The 'UNO' by Fiat
Arm. Leg.
tar
dog? as in sea dog Possibly tar
The only word I know of is hasheesh, another name for canabis
They all have 3 letters, but "red" and "tan" have exactly 3 letters.
The Huge star name with 3 and 5 letters is the Red Giant.
Lev Tolstoy (was a Russian novelist)
cot
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ate
apt
Ape