9-letter words containing e, y, s, o
- whysoever — Form of whyever.
- winsomely — sweetly or innocently charming; winning; engaging: a winsome smile.
- wyn jones — Ieuan (ˈjʊən). born 1949, Welsh politician; leader of Plaid Cymru (2000–2012)
- xenocryst — a rock or crystal engulfed by magma and retained as an inclusion in the resulting igneous rock.
- xerochasy — the release of seeds when the seed pods dry out
- yearbooks — Plural form of yearbook.
- yellowest — Superlative form of yellow.
- yellowish — somewhat yellow; tinged with yellow; yellowy.
- yestersol — On the sol before the present one.
- yorkshire — Also called York, Yorks [yawrks] /yɔrks/ (Show IPA). a former county in N England, now part of Humberside, North Yorkshire, South Yorkshire, Cleveland, and Durham.
- youngests — superl. of young.
- youngness — The state or qualities of being young or youthful; youth.
- youngster — a child.
- youthless — the condition of being young.
- youthsome — (archaic) youthful.
- ytterbous — of or containing ytterbium, esp. divalent ytterbium
- zealously — full of, characterized by, or due to zeal; ardently active, devoted, or diligent. Synonyms: enthusiastic, eager, fervid, fervent, intense, passionate, warm. Antonyms: apathetic; lackadaisical.
- zephyrous — of, relating to, or like a zephyr; full of or containing light breezes.
- zoophytes — Plural form of zoophyte.
- zygosperm — (botany) A spore formed by the union of the contents of two similar cells, either of the same or of distinct individual plants. Zygosperms are found in certain orders of alg\u00e6 and fungi.
- zygospore — a cell formed by fusion of two similar gametes, as in certain algae and fungi.
- zymoscope — A zymometer.