The initial idioms of the letter H

keep temper	hold terror for
hold that thought	hold the bag
hold the key	hold the line
Hold the phone!	hold the purse strings
hold tight	hold to
hold to ransom	hold together
hold tongue	hold true
under wraps	hold up
hold up as an example	hold up to
hold up to scorn	hold water
hold with	hold with the hare and run with the hounds
Hold your horses!	Hold your tongue!
holding pattern	hold the ring
holding	hole card
hole digger	hole up