- wheel slide
- wheel tyre
- winch up
- window handle
- window seat
- wing root
- wing tip
- wood reinforcement
- work equipment
- working load
- working pit
- world currency
- wheel boss
- wheel cracking
- wheel diameter
- wheel pressure
- whitecap
- wide-bodied
- windward
- wing rail
- wing slot
- wing tie
- winter storage
- without date
- westerly wind
- wet dock
- wheel base
- wheel bond
- wheel flat
- wheel lathe
- wheel wear
- wheel well
- wick lubrication
- winch drum
- wind chart
- winding tackle
- windmill
- wing flap
- wing tank
- without prejudice
- wooden plug
- work train
- working expense
- working life
- wrech crane
- wreck
- wrecker
- wrecking crane
- wrecking train
- Y-junction
- yacht
- yard
- yard lead
- yard track
- yardarm
- yaw
- yaw angle
- yaw axis
- yawl
- yellow flag
- zone time
- zenith angle
- zigzag line