/ Thesaurus / B Synonyms of baseball diamond Find synonyms for: Noun1. baseball diamond, diamond, infield, tract, piece of land, piece of ground, parcel of land, parcelusage: the area of a baseball field that is enclosed by 3 bases and home plateWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: entomology Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language