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- ammonias
- ammonite
- Ammonite
- ammonitic
- ammunition
- ammunitions
- amnesia
- amnesiac
- amnesiacs
- amnesic
- amnesic
- amnesics
- amnestied
- amnesties
- amnesty
- amnestying
- amnesty-international
- Amnesty International
- amnestyinternational
- amniocenteses
- amniocentesis
- amniotic-fluid
- amniotic fluid
- amnioticfluid
- Amoco
- 飘落
- 飘蓬
- 飘蓬断梗
- 飘袅
- 飘轻
- 飘逝
- 飘速
- 飘逸
- 飘逸不群
- 飘闪
- 飘降
- 飘零
- 飘飏
- 飘飐
- 飘飖
- 飘飘
- 飘飘欲仙
- 飘飘洒洒
- 飘飘漾漾
- 飘飘然
- 飘飞
- 飙
- 飙升
- 飙发
- 飙戏