What is another word for "turning"?

Roget's Thesaurus (1911) lists these synonyms for "turning": according, accordingly, adventitious, and, ant, are, attitude, attribution, backwoods, being, beyond, boundary, bourn, but, case, causation, certain, circumstance, circumstantial, circumvallation, clear, conditional, conditionally, confine, conjunctive, conjuncture, conterminable, conterminate, context, contingency, contingent, crisis, critical, curbstone, definite, demarcation, dependence, emergence, emergency, enclave.