/ Dictionary / Index P primarily: Meaning and Definition of Find definitions for: pri•ma•ri•ly Pronunciation: (prī-mâr'u-lē, -mer'-, prī'mer-u-lē, -mur-u-), [key] — adv. essentially; mostly; chiefly; principally: They live primarily from farming. in the first instance; at first; originally: Primarily a doctor, he later became a lawyer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: primarily (Thesaurus) primaquine primary Related Content Daily Word Quiz: jovial Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language