she

from The American Heritage® Dictionary of the English Language, 5th Edition.

• pronoun Used to refer to the female person or animal previously mentioned or implied.
• pronoun Used to refer to a person whose gender is unspecified or unknown.
• pronoun Used in place of it to refer to certain inanimate things, such as ships and nations, traditionally perceived as female.
• noun A female animal or person. Sometimes used in combination.

from The Century Dictionary.

• 3d pers. fem., possessive her or hers, objective her; nom. pl. they, possessive their or theirs, objective them. The nominative feminine of the pronoun of the third person, used as a substitute for the name of a female, or of something personified in the feminine. Compare he, especially for the forms her, hers.
• She is often used by people of small education or of comparatively secluded lives for the female that is chief in importance to the speaker, especially a wife; in this case it has a peculiar emphasis, separating the person referred to from all other women: as, “Sit down, she 'll be here in a minute.” Compare the similar use of he.
• She was formerly and is still dialectally sometimes used as an indeclinable form.
• In the English of the Scotch Highlanders she is commonly used for he; so her for his.
• noun A female person; a woman: correlative to he, a man.
• noun A female animal; a beast, bird, or fish of the female sex: correlative to he, a male animal: hence used attributively or as an adjective prefix, signifying ‘female,’ with names of animals, or, in occasional or humorous use, of other beings: as, a she-bear, a she-cat, a she-devil, etc. See he, n., 2.

from the GNU version of the Collaborative International Dictionary of English.

• pronoun This or that female; the woman understood or referred to; the animal of the female sex, or object personified as feminine, which was spoken of.
• pronoun rare A woman; a female; -- used substantively.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• pronoun personal A female person or animal.
• pronoun personal A ship or country.
• pronoun personal, affectionate Machinery such as cars and steam engines.
• pronoun personal, nonstandard he/she. used arbitrarily with he for an indefinite person in order to be gender-neutral.
• noun A female.