shea - sign
- shear
- shear mode
- shear test
- shearing
- sheath
- sheathed cable
- sheathing
- sheet
- sheet feeder
- sheet-fed machine
- sheetwise form
- shelfback
- shell
- shield
- shield factor
- shielded cable
- shielded loop aerial
- shielded loopantenna
- shielded pair
- shielded wire
- shielding
- shift
- shift forward
- shift key
- shift lock
- shift register
- shift-in
- shift-in code
- shift-lock key
- shift-lock keyboard
- shift-out character
- shifted
- ship radar scanner
- ship-shore communications
- ship-shore radio service
- ship-shore working frequency
- ship-to-ship channel
- ship-to-ship communication
- ship-to-ship signaling
- shipborne
