9-letter words containing e, p, s, o
- monotypes — Plural form of monotype.
- montespan — Marquise de (Françoise Athénaïs de Rochechouart) 1641–1707, mistress of Louis XIV of France.
- moonphase — a phase of the moon
- moonscape — the general appearance of the surface of the moon.
- moreporks — Plural form of morepork.
- morphemes — any of the minimal grammatical units of a language, each constituting a word or meaningful part of a word, that cannot be divided into smaller independent grammatical parts, as the, write, or the -ed of waited. Compare allomorph (def 2), morph (def 1).
- morphoses — Plural form of morphosis.
- mouse pad — mouse mat
- mousetrap — a trap for mice, especially one consisting of a rectangular wooden base on which a metal spring is mounted.
- mutoscope — A motion-picture device of the late nineteenth century, to be viewed by one person at a time through a peephole.
- mysophobe — A person with an abnormal fear of filth or dirt.
- myxospore — a spore produced within any of various fruiting bodies of myxomycetes.
- nanopores — Plural form of nanopore.
- napoleons — Plural form of napoleon.
- nasoscope — Rhinoscope.
- neomorphs — Plural form of neomorph.
- neopagans — Plural form of neopagan.
- neophytes — Plural form of neophyte.
- neoplasia — Pathology. tumor growth.
- neoplasms — Plural form of neoplasm.
- neoplasty — the surgical formation of new tissue structures or repair of damaged structures
- nephrosis — kidney disease, especially marked by noninflammatory degeneration of the tubular system.
- netphones — Plural form of netphone.
- newsfroup — (messaging, humour) A silly synonym for Usenet newsgroup, originally a typo but now in regular use on Usenet's news:talk.bizarre and other lunatic-fringe groups. Compare hing, grilf, and filk.
- newsgroup — a place on a computer network, especially within Usenet, that maintains an online discussion group on a specific topic: newsgroups for movies.
- nine-spot — a playing card the face of which bears nine pips.
- nipponese — Japanese
- nonperson — someone whose existence or presence is not recognized.
- nonplused — to render utterly perplexed; puzzle completely.
- nonpluses — Third-person singular simple present indicative form of nonplus.
- nonposted — Not having been posted (in various senses).
- nonpulsed — Not pulsed.
- nonspeech — absence of speech; silence, muteness
- nonstaple — not staple
- nonuplets — Plural form of nonuplet.
- noosphere — the biosphere including and modified by such human activities as agriculture, forestry, animal husbandry, urbanization, and industrialization.
- noscapine — (biochemistry) A benzylisoquinoline alkaloid obtained from plants of the Papaveraceae family, primarily used for its antitussive effects.
- nosepiece — the part of a frame for eyeglasses that passes over the bridge of the nose.
- occupiers — Plural form of occupier.
- octopodes — (rare) Irregular plural form of octopus.
- octopuses — Plural form of octopus.
- octuplets — Plural form of octuplet.
- off-piste — of or relating to skiing on virgin snow off the regular runs
- off-speed — slower than usual or expected, as a baseball pitch.
- oil press — a device for extracting oil from plant material, esp. olives
- oospheres — Plural form of oosphere.
- opacities — the state or quality of being opaque.
- opalesced — Simple past tense and past participle of opalesce.
- opalesces — Third-person singular simple present indicative form of opalesce.
- opelousas — a city in S Louisiana.