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- bigscreen
- big-shot
- big shot
- big shot
- bigshot
- big shots
- big-shots
- bigshots
- big-sisters
- Big Sisters
- bigsisters
- big-society
- big society
- bigsociety
- big somebody/something ↔ up
- big somebody up
- big something up
- big sth up
- big ten
- big-ten
- bigten
- Big Ten, the
- big three
- big-three
- bigthree
- 恶狠狠
- 恶疾
- 恶病质
- 恶癖
- 恶相
- 恶耗
- 恶脸
- 恶臭
- 恶虐
- 恶行
- 恶补
- 恶言
- 恶言厉色
- 恶言恶语
- 恶讨
- 恶评
- 恶语
- 恶语中伤
- 恶语伤人
- 恶谑
- 恶谥
- 恶贯满盈
- 恶趣
- 恶辣
- 恶运