英漢辭典

1. vt. (及物動詞 transitive verb)
   1. 弄慢

2. 2. 妨礙…的生長[發展]

3. 3. 不讓[學生]升級

4. 4. [機] 使(點火)延遲



5. vi. (不及物動詞 intransitive verb)
   1. (尤指潮水漲退、天體運行等)推遲,遲延



6. n. (名詞 noun)
   1. 遲滯,遲延

7. 2. 妨礙,阻止

8. 3. [美‧俚] 智力遲鈍者,傻瓜,呆子

9. 4. (社會經驗上的)不成熟者,(身體上的)殘障者

柯林斯英英辭典

vt. (transitive verb)

1. [tr] to delay or slow down (the progress, speed, or development) of (something)

n. (noun)

1. [US] [offensive] a retarded person

2. [US] [offensive] a foolish person

3. [Etymology] C15: from Old French retarder, from Latin retardare, from re- + tardare to make slow, from tardus sluggish; see tardy