- wormlike chain model
- wormlike micelle
- wormseed
- Worm tussock
- worm’s eye perspective
- worm’s eye view
- worn-out
- worry impairing spleen
- worship
- worshiping-three-spirits dance
- worship of mountains, rivers and seas
- worship of water god
- worst case analysis
- worst-case complexity
- worst-case design
- worst-case strategy
- worst-case time complexity
- worsted spinning
- worsted tops
- worst pattern test
- worst weed
- worth
- worth of a game
- Wortmann method
- W. Osgood