15-letter words containing o, r, b, i, t
- uncopyrightable — not able to be copyrighted
- unobtrusiveness — not obtrusive; inconspicuous, unassertive, or reticent.
- upward mobility — movement from one social level to a higher one (upward mobility) or a lower one (downward mobility) as by changing jobs or marrying.
- urban migration — the process of people moving from rural areas to cities
- vegetable ivory — ivory (def 9).
- visible exports — goods sold to a foreign country or countries
- visible imports — products that a company or country buys from other countries
- voltaic battery — battery (def 1a).
- weatherboarding — an early type of board used as a siding for a building.
- ytterbium oxide — a colorless compound, Yb 2 O 3 , used in certain alloys and ceramics.