noun
number of people; head count
Used when counting people, especially in contexts like attendance, staffing, or group size. Often appears in phrases like 頭数を数える or 頭数に入れる.
会議の前に頭数を確認しておきます。
I'll check the number of attendees before the meeting.
彼は戦力として頭数に入
He wasn't counted as part of the effective strength.