yán jǐn
rigorous
strict
careful
cautious
compact
well-knit
jǐn fáng
to guard against
to beware of
jǐn
cautious
careful
solemnly
sincerely (formal)
jǐn jì
to remember with reverence
to bear in mind
to keep in mind
xiǎo xīn jǐn shèn
cautious and timid (idiom); prudent
careful
jǐn shǒu
to adhere strictly (to the rules)
jǐn shàng
respectfully yours (in closing a letter)
jǐn fáng pá shǒu
Be on guard against pickpockets!
Beware of thieves!
jǐn qǐ
respectfully yours (in letters)
jǐn dìng
would like to invite (epistolary style)