10-letter words containing i, s, t, r
- first born — Someone's first born is their first child.
- first dark — twilight.
- first down — the first of four consecutive plays during which an offensive team must advance the ball at least ten yards to retain possession of it.
- first ever — Something that is the first ever one of its kind has never happened before.
- first form — the first class that children go into at school
- first hand — from the first or original source: We heard the news of the accident firsthand from a witness.
- first lady — (often initial capital letters) the wife of the U.S. president or a current governor or mayor.
- first lien — a lien having priority over others attached to the same property.
- first lord — the head of a board commissioned to perform the duties of a high office of state: First Lord of the Admiralty.
- first mate — the officer of a merchant vessel next in command beneath the captain.
- first name — given or Christian name
- first post — a position of duty, employment, or trust to which one is assigned or appointed: a diplomatic post.
- first year — the first year when someone is at university or college
- first-born — first in the order of birth; eldest.
- first-come — arranged, considered, or done in order of application or arrival, as for purposes of service: orders filled on a first-come basis.
- first-foot — the first person to cross the threshold of a house on New Year's Day.
- first-hand — from the first or original source: We heard the news of the accident firsthand from a witness.
- first-line — available for immediate service, especially combat service: first-line troops.
- first-name — of or relating to one's first, or given, name; familiar; intimate: They were on a first-name basis soon after meeting.
- first-rate — excellent; superb.
- first-time — used, appearing, contending, etc., for the first time: a first-time candidate.
- firstcomer — a person who arrives first or among the first.
- firstfruit — Singular of firstfruits, an offering of the first of the harvest.
- firstlings — Plural form of firstling.
- fish story — an exaggerated or incredible story: It was just another one of his fish stories.
- fixed star — any of the stars which apparently always retain the same position in respect to one another.
- flatteries — Plural form of flattery.
- flavourist — a chemist who blends ingredients to create artificial flavours or scents, for food or perfume
- flintshire — a historic county in Clwyd, in NE Wales.
- flirtiness — The quality of being flirty.
- floorshift — a gearshift set into the floor of an automotive vehicle.
- florissant — a city in E Missouri, near St. Louis.
- floristics — the study of the distribution, number, types, and relationships of plant species in an area or areas.
- flush girt — a girt running parallel to joists and at the same level.
- flustering — Agitated, confusing.
- fly-strike — myiasis.
- folklorist — the traditional beliefs, legends, customs, etc., of a people; lore of a people.
- footprints — Plural form of footprint.
- forestlike — Like a forest.
- forfeiters — Plural form of forfeiter.
- formations — Plural form of formation.
- formatives — Plural form of formative.
- formicates — Third-person singular simple present indicative form of formicate.
- fornicates — Third-person singular simple present indicative form of fornicate.
- forsterite — the magnesium end member, Mg 2 SiO 4 , of the olivine group.
- forsythias — Plural form of forsythia.
- fort bliss — a military reservation and U.S. Army training center NE of El Paso in W Texas.
- fort boise — a fort formerly near Boise, in SW Idaho: an important post on the Oregon Trail.
- fort lewis — a military reservation in W central Washington State, SW of Tacoma.
- fort meigs — Fort. Fort Meigs.