- trochoid
- troite
- trolling
- trombone
- trona
- troop
- troop-boats
- troop-ships
- trophy
- tropical motion
- tropical revolution
- tropic-bird
- tropics
- trough
- troul
- trounce, to
- trouncer
- trous de loup
- trow
- truce
- truchman
- truck
- truckle
- trucks
- true anomaly
- true-blue
- true-horizon
- true tide
- true water
- truff
- trug
- trugman
- trumpeter
- truncheon
- trundle-head
- trundle-shot
- trunk
- trunk-engine
- trunk-fish
- trunnion-ring
- trunnions
- truss
- truss-hoops
- truss-parrel
- truss-pendant
- truss-pieces
- truss-tackle
- truss up, to
- lie-to, in a gale
- try, to, or lie-to, in a gale
- try back for a bend, to
- try down, to
- trying the range
- trysail
- trysail-mast
- try-works
- tub, grog
- tub, match
- tubes
- tubes, for guns
- tubs, topsail-halliard
- tubular boilers
- tuck
- tug
- tug, to
- tugg
- tumble in
- tumbler
- tumble up!
- tumbling home
- tumbling sea
- tumbril
- tum-tum
- tungula
- tunny
- turbonada
- turbot
- turkey-grain
- turk's head
- turn, to catch a
- turn, to take or catch a
- turn ahead!
- turn a turtle, to
- turn in, to
- turn in a heart, to
- turn in a dead-eye or heart, to
- turning in rigging
- turning-room
- turn in the hawse
- turn of the tide
- turn out the guard!
- turn over men, to
- turn the glass
- turn the hands up, to
- turn to windward, to
- turnpike-sailors
- turpis causa
- turret-ship
- turtle
- turtle-crawl