The junction of two (or more) paths, streets, highways, or other thoroughfares. / Any overlap, confluence, or crossover.

Coitus or genital-genital sexual contact. / Sexual interaction, usually involving vaginal and/or anal and/or oral penetration, between at least two organisms.

Mutual communication.

(of people) To engage in communication and other shared activities (with someone). / (of two or more things) To affect each other.

(dated) A short act or piece between others, as in a play; a break between acts. / (obsolete) Intermediate employment or time. / (social sciences) A pair or series of acts involving more than one person.

Having or showing interest. / (now rare) Motivated by considerations of self-interest; self-serving. / Owning a share of a company.

simple past tense and past participle of interest

Transitional. / Temporary.

A transitional or temporary period between other events.

The point of interconnection or contact between entities. / (chemistry, physics) A thin layer or boundary between different substances or two phases of a single substance.