/ Dictionary / Index H Henley-on-Thames: Meaning and Definition of Find definitions for: Hen•ley-on-Thames Pronunciation: (hen'lē-on-temz'), [key] — n. a city in SE Oxfordshire, in S England: annual rowing regatta. 31,744. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Henley henna Related Content Daily Word Quiz: hedonist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language