What is another word for "coexistence"?

Roget's Thesaurus (1911) lists these synonyms for "coexistence": abut, abutment, abuttal, abutter, accessory, accompaniment, accompany, addition, adhere, adhesion, adjoin, adjunct, along, and, appendage, apposition, appulse, appurtenance, arm, associate, associated, association, attend, attendant, attribute, bear, boat, body, bring, cause, cheek, close, coefficiency, coefficient, coexist, coincide, coincidence, colleague, collectively, come.