stra - surf
- straddle
- straddling
- straight
- straight chain
- straight common crossing
- straight edge
- straight engine
- straight fence
- straight hood
- straight joint
- straight line
- straight negative
- straight packing
- straight pincers
- straight pressing
- straight run
- straight stem
- straight tap
- straight throat
- straight track
- straight turning
- straight-faced pulley
- straight-flank gear
- straight-flow valve
- straight-fluted drill
- straight-in approach
- straight-line capacitance
- straight-line compressor
- straight-line frequency
- straight-line image reverser
- straight-nose cock
- straight-pane hammer
- straight-peen hammer
- straight-run product
- straight-shank twist drill
- straight-sided spline
- straight-through can washer
- straight-through press
- straight-through traffic
- straight-tooth meshing gear
