omnipresence, n. [ubiquity].
omnipresent, n. ubiquitous.
one, n. unit. Associated words: unify, [unity], unification, numerary.
one after the other. seriatim; tandem; alternately, consecutively.
one hundred years. [century], [centenary]. Associated words: centenarian, [centennial].
one letter. Associated word: uniliteral.
on end. [erect], [perpendicular], [upright].
oneness, n. [unity], singleness, individuality, [unanimity].
onerous, a. [laborious], [difficult], [arduous].
one-sided, a. unilateral; [partial], [unfair], inequitable, ex parte.