The initial idioms of the letter H

heart misses a beat	heart not in it
heart of glass	heart of gold
heart of oak	heart of stone
wear one's heart on one's sleeve	heart out
heart sinks	heart skips a beat
heart to heart	heartbeat away from being (something)
heartbeat	heartbreaking
hearth	hearth and home
heart	hearts and flowers
to one's heart's content	heartstring
heart-to-heart talk	hearty
heat up	heat
heater	Heath Robinson
heather	heat wave
heave	heave at