16-letter words starting with or
- orange marmalade — preserve made from oranges
- orange men's day — July 12, an annual celebration in Northern Ireland and certain cities having a large Irish section, especially Liverpool, to mark both the victory of William III over James II at the Battle of the Boyne, July 1, 1690, and the Battle of Augbrim, July 12, 1690.
- orbital velocity — the minimum velocity at which a body must move to maintain a given orbit.
- order in council — (in Britain and various other Commonwealth countries) a decree of the Cabinet, usually made under the authority of a statute: in theory a decree of the sovereign and Privy Council
- order of service — a prescribed form of liturgical service, or of administration of a rite or ceremony
- order of the day — the agenda for an assembly, meeting, group, or organization.
- ordinary jubilee — the celebration of any of certain anniversaries, as the twenty-fifth (silver jubilee) fiftieth (golden jubilee) or sixtieth or seventy-fifth (diamond jubilee)
- ordnance factory — a factory that makes military weapons and ammunition
- organ transplant — an operation in which an organ is transplanted from a donor
- organ-pipe coral — an alcyonarian coral of the genus Tubipora, occurring in tropical waters, and forming a complex colony of brick-red, vertical tubules joined at intervals by transverse plates.
- organization man — a person who subordinates his personal life to the demands of the organization he works for
- organizationally — the act or process of organizing.
- organized labour — labour carried out by workers in trade unions, or the workers themselves
- organoleptically — In an organoleptic manner.
- organophosphates — Plural form of organophosphate.
- organophosphorus — Denoting synthetic organic compounds containing phosphorus, especially pesticides and nerve gases of this kind.
- oriental emerald — a green variety of corundum used as a gemstone
- ornithologically — In terms of ornithology.
- orographic cloud — any cloud whose existence and form are largely controlled by the disturbed flow of air over and around mountains, as the banner cloud and crest cloud.
- orthodox judaism — Judaism as observed by Orthodox Jews.
- orthodoxy sunday — a solemn festival held on the first Sunday of Lent (Orthodoxy Sunday) commemorating the restoration of the use of icons in the church (a.d. 842) and the triumph over all heresies.
- orthoformic acid — a hypothetical acid, HC(OH) 3 , known only in the form of its esters.
- orthographically — In an orthographical manner; using proper spelling, capitalization and grammar.
- orthosympathetic — Of or pertaining to the sympathetic component of the autonomic nervous system.
On this page, we collect all 16-letter words starting with OR. It’s easy to find right word with a certain length. It is the easiest way to find 16-letter word that beginning with OR to use in Scrabble or Crossword puzzles.