对于给定的英语单词，输出其同义词。



1. 同义词：smart

2. 同义词：funny

3. 同义词：happy
1. Synonyms of "smart": intelligent, clever, brilliant, sharp, witty.
2. Synonyms of "funny": amusing, comical, entertaining, humorous, witty.
3. Synonyms of "happy": pleased, content, delighted, joyful, ecstatic.