noun
six people
Simple counter for six persons. Used in everyday counting and scheduling.
六人でテーブルを囲んだ。
Six people sat around the table.
予約は六人でお願いします。
Reservation for six, please.
六つ is the native Japanese counter for six (general objects), while 六人 specifically counts people.
六名 is a more formal counter for six people, often used in official or written contexts.
Compound of 六 (roku, 'six') and 人 (nin, counter for people).