Of a number of people walking, or especially marching, synchronously, so that that footfalls occur at the same time.

Third-person singular simple present indicative form of step to

(African-American Vernacular, slang, transitive) To challenge, confront or fight (with someone). / (African-American Vernacular, slang, transitive) To meet a challenge or confront (someone).

simple past tense and past participle of step to

(US) Initialism of Smart Traveler Enrollment Program.

Used other than figuratively or idiomatically: see step, on. / (recreational drugs, transitive) to adulterate a drug for the purpose of increasing its bulk, and therefore its profit; to dilute, cut.

simple past tense and past participle of step on

(slang, archaic) To run away; scram.

simple past tense and past participle of step on it

Third-person singular simple present indicative form of step on it