sit in for Meaning to take someones place when they are absent For example The manager has attended most of the negotiations, but his assistant sat in for him a couple of times. I cant make it to todays meeting, so would you mind sitting in for me? ━━━━━━━━━━━ #Phrasal_Verb_of_the_Day @ieltsbid Join us Instagram | Twitter | Facebook 2.1K viewsJoban Jossan, edited 14:15
