sitting in on

Attending without participating

Sitting in on is attending something as an observer rather than a participant.

You might sit in on a class, a meeting, or a rehearsal to watch and listen without taking an active role: I sat in on a few lectures before deciding to enroll.

In music, sitting in means joining a performance as a guest: A legendary saxophonist sat in on the second set.

Related

learning the ropes · observing · witnessing · guesting · substituting · spectating · back row · monitoring · overseeing · taking notes · experiencing · first day · learning · filling in · enrolling · professional development · look at · studying

Opposites
participation status

sitting in onauditing

Examining records for accuracy

role in proceedings

sitting in onleading

Guiding or pacing type

chairing · running · conducting · facilitating · teaching

presence vs. absence

sitting in onmissing

Not present, whereabouts unknown

skipping · boycotting

Family

sitting, sits, sitter, sitters

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G