1 letter

2 mail

3 classifier: 封 fēng

4 to trust

5 to believe

6 to profess faith in

7 truthful

8 confidence

9 trust

10 at will

11 at random

1 information

2 news

3 message

1 mouth

2 classifier for things with mouths (people, domestic animals, cannons, wells etc)

3 classifier for bites or mouthfuls

1 to be convinced (that sth is true)

2 to believe

3 to accept sth as true

1 text message

2 SMS

1 (idiom) reluctant to speak about it

2 tight-lipped

1 not to be crushed (idiom)

2 to be determined to have one's revenge

1 voices unanimous in praise (idiom); with an extensive public reputation

1 to remove sth that could be used as a pretext (idiom)

1 words of a Buddha, heart of a snake (idiom); two-faced

2 malicious and duplicitous