Usage: often attributive
Etymology: Middle English, from Old English grund; akin to Old High German grunt ground
Date: before 12th century
a. the bottom of a body of water
(1) sediment 1
(2) ground coffee beans after brewing
a. a basis for belief, action, or argument <ground for complaint> — often used in plural <sufficient grounds for divorce> b. (1) a fundamental logical condition (2) a basic metaphysical cause 3. a. a surrounding area ; background b. material that serves as a substratum 4. a. the surface of the earth b. an area used for a particular purpose <the parade ground> <fishing grounds> c. plural the area around and belonging to a house or other building d. an area to be won or defended in or as if in battle e. an area of knowledge or special interest <covered a lot of ground in his lecture> 5. a. soil, earth b. a special soil 6. a. an object that makes an electrical connection with the earth b. a large conducting body (as the earth) used as a common return for an electric circuit and as an arbitrary zero of potential c. electric connection with a ground 7. a football offense utilizing primarily running plays II. verb Date: 13th century transitive verb 1. a. to bring to or place on the ground b. to cause to run aground 2. a. to provide a reason or justification for <our fears about technological change may be well grounded — L. K. Williams> b. to furnish with a foundation of knowledge ; base <an understanding…that is grounded in fact — Michael Kimmelman> 3. to connect electrically with a ground 4. a. to restrict to the ground <ground a pilot> b. to prohibit from taking part in some usual activities <grounded her for a week> 5. to throw (a football) intentionally to the ground to avoid being tackled for a loss intransitive verb 1. to have a ground or basis ; rely 2. to run aground 3. to hit a grounder <grounded back to the pitcher> III. past and past participle of grind
New Collegiate Dictionary. 2001.