13-letter words containing i, s, o, t, n
- notifications — Plural form of notification.
- notoriousness — publicly or generally known, as for a particular trait: a newspaper that is notorious for its sensationalism. Synonyms: notable, renowned, celebrated, prominent, conspicuous, famous, widely known.
- nudist colony — a place where group of nudists live together separated from the rest of the community
- numerologists — the study of numbers, as the figures designating the year of one's birth, to determine their supposed influence on one's life, future, etc.
- numismatology — Numismatics.
- nutrigenomics — the study of how individual genetic makeup interacts with diet, especially the effects of this interaction on a person's health.
- nutritionists — Plural form of nutritionist.
- o-proposition — a particular negative proposition
- objectiveness — something that one's efforts or actions are intended to attain or accomplish; purpose; goal; target: the objective of a military attack; the objective of a fund-raising drive.
- observational — of, relating to, or founded on observation, especially founded on observation rather than experiment.
- obstetricians — Plural form of obstetrician.
- obstinateness — The characteristic of being obstinate.
- obtrusiveness — having or showing a disposition to obtrude, as by imposing oneself or one's opinions on others.
- occasionalist — a person who subscribes to the theory of occasionalism
- occasionality — the condition or character of being infrequent or intended for a specific occasion, or that which is infrequent or intended for a specific occasion
- occidentalism — Occidental character or characteristics.
- oceanic crust — the brown, hard outer portion or surface of a loaf or slice of bread (distinguished from crumb).
- octogenarians — Plural form of octogenarian.
- odontoblastic — Relating to odontoblasts.
- odontogenesis — the development of teeth.
- odontornithes — a proposed class of birds that possess teeth
- omnipresently — In an omnipresent manner.
- on its merits — on the intrinsic qualities or virtues
- on one's time — the system of those sequential relations that any event has to any other, as past, present, or future; indefinite and continuous duration regarded as that in which events succeed one another.
- on the inside — in a position allowing access to secret information, special advantage or favor, etc.
- on the parish — receiving parochial relief
- on-off switch — electrical or electronic device: control knob
- onanistically — In an onanistic manner.
- one's forties — the ages between 40 and 49
- one's sixties — the ages between 60–69
- oneiroscopist — a person who specialises in studying and interpreting dreams
- onomastically — In an onomastic way.
- onomatologist — One versed in the history of names.
- onomatopoeias — Plural form of onomatopoeia.
- onychophagist — the practice of biting one's nails, especially when done habitually and as a symptom of emotional disturbance.
- open position — Music. the arrangement of a chord with wide intervals between the parts.
- open question — question: invites long answer
- open registry — ship registration under a national flag available to all ships regardless of nationality.
- operativeness — (uncountable) The state or quality of being operative.
- opisthobranch — any gastropod mollusk of the order Opisthobranchia, as the sea slugs, sea butterflies, and sea hares, characterized by a vestigial or absent mantle and shell and two pairs of tentacles.
- opportunistic — adhering to a policy of opportunism; practicing opportunism.
- opportunities — Plural form of opportunity.
- oppositionary — the action of opposing, resisting, or combating.
- oppositionist — a person who offers opposition; a member of an opposition.
- optical sound — sound recorded on and subsequently played back from an optical or photographic soundtrack, as opposed to a magnetic soundtrack.
- optimizations — Plural form of optimization.
- oral solution — An oral solution is a medicine in liquid form for drinking.
- orchestrating — Present participle of orchestrate.
- orchestration — (uncountable) the arrangement of music for performance by an orchestra.
- organ whistle — a steam or air whistle in which the jet is forced up against the thin edge of a pipe closed at the top.