n.
Function: noun
Date: 15th century
1 : one who is regular: as a : one of the regular clergy b : a soldier in a regular army c : one who can be trusted or depended on <a party regular > d : a player on an athletic team who usually starts every game e : one who is usually present or participating especially : a long-standing regular customer
2 : something of average or medium size especially : a clothing size designed to fit a person of average height