mortarboard
Word family nounmortarmortarboard
College
mor·tar·board /ˈmɔːtəbɔːd $ ˈmɔːrtərbɔːrd/ noun [countableC] 
SECa black cap with a flat square top worn by members of some universities on formal occasions 学士帽，学位帽 →5 see picture at 见图 hat- concede a goal
- concede a goal/point/penalty
- concede a penalty
- concede a point
- conceded
- concededly
- conceder
- concedes
- conceding
- concedings
- conceit
- conceited
- conceitedly
- conceitedness
- conceitednesses
- conceits
- conceivabilities
- conceivability
- conceivable
- conceivableness
- conceivablenesses
- conceivably
- conceive
- conceived
- conceiver