Bovine = Cow
Cow
curio
A synonym for liar that starts with "c" is "deceiver."
colorful
Courteous is a synonym of nice. Courteous is a synonym of nice.
concur, conduce, connect
Active is a synonym for athletic. It starts with the letter a.
Substantial is a synonym for big that starts with S.
Bovine.
Boost is a synonym for the word lift and starts with the letter B.
A synonym for bully that starts with "d" is "domineer."
Adequate is a synonym for Sufficient that begins with a.