english
1
general::
Phrase(s): count something in to include something in a count of something. • Did you count the tall ones in? • Did you count in the tall ones in the corner?
McGrawhill's American Idioms And Phrasal Verbs
2
general::
Phrase(s): count someone in (for something) [and] count someone in (on something); count someone in to include someone as part of something. • Please count me in for the party. • Do count me in on it. • Count in everybody who said they would attend.
McGrawhill's American Idioms And Phrasal Verbs
3
general::
Include, as in Can all the members be counted in? or I'd love to come; count me in. [Mid-1800s]
American Heritage Idioms