6-letter words containing o, t, s
- nonets — Plural form of nonet.
- nostoc — any freshwater, blue-green alga of the genus Nostoc, often occurring in jellylike colonies in moist places.
- nostos — A homecoming.
- nostra — Plural form of nostrum.
- notest — Archaic second-person singular form of note.
- notist — (obsolete) An annotator.
- o star — a very hot, massive, blue star of spectral type O, having a surface temperature between 30,000 and 50,000 K and an absorption spectrum with few lines, though the Balmer series of hydrogen lines is present and lines of ionized helium are detectable.
- oaters — Plural form of oater.
- oblast — (in Russia and the Soviet Union) an administrative division corresponding to an autonomous province.
- oboist — a player of the oboe.
- obtest — to invoke as witness.
- obtuse — not quick or alert in perception, feeling, or intellect; not sensitive or observant; dull.
- octads — Plural form of octad.
- octans — (of a fever) occurring every eighth day.
- octets — Plural form of octet.
- oddest — differing in nature from what is ordinary, usual, or expected: an odd choice.
- oecist — a person who colonizes, particularly in Ancient Greece
- offset — something that counterbalances, counteracts, or compensates for something else; compensating equivalent.
- ofsted — Office for Standards in Education: a government body set up in 1993 to inspect and assess the educational standards of schools and colleges in England and Wales
- oftest — Most often (Superlative form of oft), (chiefly poetic and dialectal).
- oldest — far advanced in the years of one's or its life: an old man; an old horse; an old tree.
- oncest — at one time in the past; formerly: I was a farmer once; a once powerful nation.
- oncost — Additional costs; extra expenses.
- onsets — Plural form of onset.
- onsite — accomplished or located at the site of a particular activity or concern: on-site medical treatment for accident victims.
- oocyst — the encysted zygotic stage in the life cycle of some sporozoans.
- ootids — Plural form of ootid.
- optics — the eye.
- orants — a representation of a female figure, with outstretched arms and palms up in a gesture of prayer, in ancient and early Christian art.
- orates — Third-person singular simple present indicative form of orate.
- orbits — the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.
- orthos — Plural form of ortho.
- ortles — a range of the Alps in N Italy. Highest peak: 3899 m (12 792 ft)
- osbert — a male given name: from Old English words meaning “god” and “bright.”.
- osetra — a type of caviar deriving from the osetra sturgeon
- osmate — a salt of osmic acid
- osteal — osseous.
- ostend — a seaport in NW Belgium.
- ostent — Appearance; air; mien.
- osteo- — indicating bone or bones
- osteon — (anatomy) Any of the central canals, and surrounding bony layers, found in compact bone.
- ostiak — Ostyak.
- ostial — relating to an ostium
- ostium — Anatomy, Zoology. a small opening or orifice, as at the end of the oviduct.
- ostler — hostler.
- ostomy — any of various surgical procedures, as a colostomy, in which an artificial opening is made so as to permit the drainage of waste products either into an appropriate organ or to the outside of the body.
- ostyak — Khanty.
- others — additional or further: he and one other person.
- otiose — being at leisure; idle; indolent.
- otitis — inflammation of the ear.