Click any word in a definition or example to find the entry for that word
|I/you/we/they||sit in on|
|he/she/it||sits in on|
|present participle||sitting in on|
|past tense||sat in on|
|past participle||sat in on|
This is the British English definition of sit in on. View American English definition of sit in on.
a room in a church used for storing things