UnscrambleTheWord.coumbo
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Is umbo a Scrabble word?
Word Games
- Scrabble US/Canada (OTCWL) Yes
- Scrabble UK (SOWPODS) Yes
- Wordle No
- Words With Friends Yes
Scrabble US/Canada (OTCWL) 
Wordle 
Words With Friends What is the meaning of umbo?
Definition
noun (English)
1. (historical) The boss of a shield, at or near the middle and usually projecting, sometimes in a sharp spike.Examples: "It is thirteen inches diameter, made of wood covered with leather, and an iron plate decorated with nails and mouldings; the boss or umbo projects four inches."; "serves as the umbo of the region’s so-called Silicon Shield"historical
2. (biology) A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane.
3. (biology) A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane.
4. (biology) A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane.
Definition source: Wiktionary