/ Dictionary / Index G Guaymas: Meaning and Definition of Find definitions for: Guay•mas Pronunciation: (gwī'mäs), [key] — n. a seaport in NW Mexico. 84,730. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Guayaquil Guaynabo Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language