Of a horse: well formed at the part where the back joins the rump.

plural of well-boat

(nautical) A fishing vessel designed to carry live fish in a tank or well.

Highly gratified or satisfied.

(attributive) developed to a great extent, highly developed

(intransitive) To preemptively raise ad hominem arguments in order to discredit someone. / Used other than figuratively or idiomatically: see poison, the, well.

(personal ads) Abbreviation of well-endowed.

(theater, dated) Well prepared, having thoroughly memorized one's part.

Favourably inclined.

Third-person singular simple present indicative form of well up