16-letter words containing o, a, s, i
- sangre de cristo — a mountain range in S Colorado and N New Mexico: a part of the Rocky Mountains. Highest peak, Blanca Peak, 14,390 feet (4385 meters).
- santiago de cuba — a region in Ecuador, E of the Andes: the border long disputed by Peru.
- saorstat eireann — Irish name of Irish Free State.
- sapodilla family — the plant family Sapotaceae, characterized by chiefly tropical trees and shrubs having milky juice, simple leaves, small flowers, and fruit in the form of a berry, and including the buckthorn (genus Bumelia), sapodilla, star apple, and trees that are the source of gutta-percha and balata.
- saratoga springs — a city in E New York: health resort; horse races.
- satellite nation — a country under the domination of a foreign power
- saturation level — carrying capacity.
- saturation point — the point at which a substance will receive no more of another substance in solution, chemical combination, etc.
- savage's station — a locality in E Virginia, near Richmond: Civil War battle in 1862.
- savings and loan — type of savings bank
- savonarola chair — a chair of the Renaissance having a number of transverse pairs of curved legs, crossing beneath the seat and rising to support the arms and back.
- saxo grammaticus — c1150–1206? Danish historian and poet.
- scandinavian lox — a kind of brine-cured salmon, having either a salt cure (Scandinavian lox) or a sugar cure (Nova Scotia lox) often eaten with cream cheese on a bagel.
- scar tissue code — (humour, programming) Old code that is commented out but still included in the current release.
- scarborough lily — a plant, Vallota speciosa, of the amaryllis family, native to southern Africa, having clusters of funnel-shaped, scarlet flowers.
- school librarian — a librarian who works in or is in charge of a school library
- school-age child — a child who is old enough to go to school
- schoolteacherish — showing characteristics thought to be typical of a schoolteacher, as strictness and primness.
- schouten islands — a group of islands belonging to Papua New Guinea, in the Pacific Oceans, off the N coast of New Guinea.
- scrovegni chapel — Arena Chapel.
- seaside knotweed — See under knotweed.
- seat of learning — People sometimes refer to a university or a similar institution as a seat of learning.
- second adventist — Adventist (def 1).
- secondary tissue — tissue derived from cambium.
- sedimentary rock — rock formed from compacted minerals
- sekondi-takoradi — a seaport in SW Ghana.
- self-affirmation — the act or an instance of affirming; state of being affirmed.
- self-approbation — approval; commendation.
- self-containment — the state of being self-contained.
- self-cultivation — the act or art of cultivating.
- self-degradation — the act of degrading.
- self-denigration — to speak damagingly of; criticize in a derogatory manner; sully; defame: to denigrate someone's character.
- self-deprecation — belittling or undervaluing oneself; excessively modest.
- self-deprivation — the act of depriving.
- self-designation — a name taken for oneself or one's own people
- self-elaboration — an act or instance of elaborating.
- self-examination — examination into one's own state, conduct, motives, etc.
- self-explication — the act of explicating.
- self-humiliation — an act or instance of humiliating or being humiliated.
- self-indignation — strong displeasure at something considered unjust, offensive, insulting, or base; righteous anger.
- self-integration — an act or instance of combining into an integral whole.
- self-lubrication — the process of becoming lubricated without external factors
- self-observation — an act or instance of noticing or perceiving.
- self-opinionated — conceited; having an inordinately high regard for oneself, one's own opinions, views, etc.
- self-pollination — the transfer of pollen from the anther to the stigma of the same flower, another flower on the same plant, or the flower of a plant of the same clone.
- self-preparation — a proceeding, measure, or provision by which one prepares for something: preparations for a journey.
- self-proclaiming — to announce or declare in an official or formal manner: to proclaim war.
- self-propagating — to cause (an organism) to multiply by any process of natural reproduction from the parent stock.
- self-realization — the fulfillment of one's potential.
- self-reformation — the act of reforming; state of being reformed.