15-letter words containing a, p, o, d
- una corda pedal — soft pedal (def 1).
- unchoreographed — not choreographed; not pre-arranged or pre-prepared; unplanned
- undercompensate — to compensate or pay less than is fair, customary, or expected.
- underpopulation — having a population lower than is normal or desirable.
- undisappointing — not disappointing
- unleaded petrol — petrol containing a reduced amount of tetraethyl lead
- unsophisticated — not sophisticated; simple; artless.
- 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.
- upwardly mobile — See under vertical mobility (def 1).
- uropygial gland — a gland opening on the back at the base of the tail in most birds that secretes an oily fluid used by the bird in preening its feathers.
- wind-pollinated — being pollinated by airborne pollen.
- windfall profit — a profit that arises thanks to an external event over which the person profiting had no control
- wraparound care — a childcare facility intended to help working parents, in which young children are looked after before and after school
- xeroradiography — an x-ray utilizing a specially coated plate that allows a picture to be developed without the use of liquid chemicals.