half - hepa
- half
- half a day
- Half adder
- half adder
- Half adder, binary
- half an hour
- half band width
- half batten
- Half blind hole
- half brick wall,
- half brother
- half cell
- Half centre
- half century
- half circuit
- half closed vowel
- Half crossed belting
- half day leave
- half dovetail
- Half duplex
- half empty glass
- half file
- half header
- half holiday
- half hour
- Half hour rating
- Half joist
- Half lap coupling
- Half lap hole
- half lap joint
- Half lap joint
- Half lattice girder
- half life
- Half life
- half life period
- half life period element
- half life period zone
- half life shade plate
- half life wave plate
- half mast
