anechoic /an-ə-kōˈik or -e-/

1. Echoless
2. (of a material) preventing echo

• the great unwashed
• the Greek calends
• the green-eyed monster
• the grey mare is the better horse
• the Greys
• the grim reaper
• the grip
• the hale hypothec
• the halls
• the hand of God
• the hard stuff
• the hard way
• the heavens opened
• the heavies
• the hell
• the here and now
• the Holy City
• the honourable and gallant member
• the horrors
• the House
• the Household
• the how and the why
• the Hundred Days
• theic
• theics