step out onsomeone
phrasal verbwithstepverb[I+ adv/prep]uk/step/us/step/-pp-
USinformalIf youstepout onyourhusband,wife, orusualsexualpartner, you havesexualrelationshipswithpeopleother than them.
Relationships: infidelity
- adulterer
- adulterous
- adultery
- affair
- bigamous
- bigamously
- bit
- extramarital
- faithless
- faithlessly
- faithlessness
- fool
- mess
- on the sideidiom
- play around
- screw
- screw around
- side
- step
- wander