hold firm

apron-string hold

An estate held by a man during his wife's life.

buy and hold

A passive investment strategy where an investor purchases an asset and retains it for many years, rather than trading it frequently.

don't hold your breath

Don't wait. Said cynically to suggest that what has just been mentioned is unlikely to happen soon or at all.

firm up

To make (tentative plans) more definite.

hold a grudge

To stay angry (at someone or something).

hold a light

Synonym of hold a candle.

hold back

To act with reserve; to contain one's full measure or power.

hold by the button

To detain in conversation to the point of weariness or tedium; to bore while tallking to