10-letter words containing umb
- umber moth — any of various brownish geometrid moths, esp the waved umber (Menophra abruptaria) and small waved umber (Horisme vitalbata), that are cryptically marked to merge with tree bark, and the mottled umber (Erannis defoliaria) whose looper larvae can strip branches and even trees
- umberto ii — 1904–83, the last king of Italy (1946), following the abdication of his father Victor Emmanuel III: abdicated when a referendum supported the abolition of the monarchy
- umbilicate — having the form of an umbilicus or navel.
- umbiliform — having the form of an umbilicus.
- umbonation — the formation of an umbo
- umbraculum — any of a genus of limpets belonging to the family Umbraculidae
- umbrageous — creating or providing shade; shady: an umbrageous tree.
- uncumbered — to hinder; hamper.
- unnumbered — having no number or numbers as identification: unnumbered pages.
- vat number — registration code for tax purposes
- wavenumber — (mathematics, physics) A measure of the number of waves in unit distance; inversely proportional to its wavelength.