/ Dictionary / Index T tilth: Meaning and Definition of Find definitions for: tilth Pronunciation: (tilth), [key] — n. the act or operation of tilling land; tillage. the state of being tilled or under cultivation. the physical condition of soil in relation to plant growth. land that is tilled or cultivated. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tilth (Thesaurus) tilt board tilt hammer Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language