togg - tran
- toggle
- toggle joint
- toggle lever
- toggle seat
- token
- tolerance
- ton
- tongs
- tongue
- tongue-and-groove joint
- tongued-and-grooved sheet pile
- tool
- tool against borehole wall, force
- tool dresser
- tool house
- tool joint
- tool joint (splitting of tool joint) disconnection
- tool joint box
- tool kit
- tool measurement
- tool nipper
- tool operation
- tool response
- tool; tool matrix; tool shank body
- tooth gear
- tooth-type (flexible) coupling
- toothed (ratched) disk
- toothed bit
- toothed rack
- top
- top and benching heading
- top cement
- top cover
- top cut
- top cutting
- top deck
- top determination cement
- top easer
- top failure
- top fluid
