1) Any very large woman 2) Giant 3) Huge woman 1) Ogress 
A giantess is a female giant. The term may refer either a mythical being resembling a woman of superhuman size and strength or a human woman of exceptional stature, often the result of some medical or genetic abnormality (see gigantism). ==Books== In Lewis Carroll`s story Alice`s Adventures in Wonderland, there are several scenes where the heroi.....
• (n.) A woman of extraordinary size.
Gi'ant·ess noun A woman of extraordinary size. 
[n] - a female giant
an imaginary female being of human form but superhuman size, strength, etc. · any very large woman.