英和和英

keep your guard up

save the tide

to observe silence―keep silence―hold one's tongue―hold one's peace

maintain silence

to keep silence―observe silence―hold one's peace

to protect oneself from harm―defend oneself against attack

to physically defend oneself

hedge your bets

keep safe

to remain faithful to one's cause―adhere to one's principles―stick to one's colours

to keep a secret―preserve secrecy―observe secrecy

keep a secret

keep a secret

keep guard

observe silence

A woman is neglected by her husband

She remains chaste in her husband's absence

She is a grass-widow.

to protect and defend

keep your cool

play shortstop

to remain faithful to one's principles―adhere to one's principles―stick to one's colours

to keep one's place―keep one's station―keep one's distance

keep one's countenance

kept secret

with your identity concealed

defend oneself

keep one's sanity

to hold a fort

hold your temper