An Irishwoman.
A woman, especially an old woman; especially one regarded as fussy or mean or a gossipy busybody.
An attractive girl.
breasts (when used in the phrase "tig biddies" derived from "big tiddies")
A name used in calling a hen or chicken, often as "biddy-biddy-biddy".
A female spirit presiding over fountains, wells, streams, etc.
Any of various aquatic plants of the genus Najas.