4-letter words that end in a
- pupa — an insect in the nonfeeding, usually immobile, transformation stage between the larva and the imago.
- quia — (Lutheranism) Relating to the belief that the w Book of Concord is authoritative because it faithfully describes the Christian faith as revealed in the Bible.
- raca — a biblical word meaning 'worthless' or 'empty'
- rada — (politics) a parliamentary body in a number of Slavic countries.
- raga — one of the melodic formulas of Hindu music having the melodic shape, rhythm, and ornamentation prescribed by tradition.
- raia — rayah.
- raja — a king or prince in India.
- raka — a portion of the salat, the prescribed prayers said five times a day, that combines a ritual of bows and prostrations with the recitation of prayers.
- rama — (Phumiphon Aduldet; Bhumibol Adulyadej) born 1927, king of Thailand since 1946.
- rana — any large frog, of the genus Rana, of which there are more than ninety species found in Europe, Asia, and the Americas
- rasa — (in Hindu aesthetics) flavor, sentiment, or emotion: regarded as one of the fundamental qualities of classical music, dance, and poetry.
- rata — either of two New Zealand myrtaceous forest trees, Metrosideros robusta or M. lucida, having crimson flowers and hard wood
- raza — (used with a plural verb) Mexican Americans collectively.
- rdba — Remote Database Access
- rena — a female given name, form of Marina.
- rhea — Classical Mythology. a Titan, the daughter of Uranus and Gaea, the wife and sister of Cronus, and the mother of Zeus, Poseidon, Hera, Hades, Demeter, and Hestia: identified with Cybele and, by the Romans, with Ops.
- riba — (in Islam) interest or usury, as forbidden by the Koran
- riga — a republic in N Europe, on the Baltic, S of Estonia, an independent state 1918–40; annexed by the Soviet Union 1940; regained independence 1991. 25,395 sq. mi. (63,700 sq. km). Capital: Riga.
- rima — a female given name.
- rina — a female given name.
- rita — a female given name, form of Margarita.
- riva — a cleft in rock
- riza — a cover of gilt or silvered metal whose purpose is to protect a religious work of art or icon, leaving spaces for the hands and face of the subject to show through
- roca — Cape, a cape in W Portugal, near Lisbon: the western extremity of continental Europe.
- roma — Rome.
- rosa — Salvator [sahl-vah-tawr] /ˈsɑl vɑˌtɔr/ (Show IPA), 1615–73, Italian painter and poet.
- rota — Nino [nee-naw] /ˈni nɔ/ (Show IPA), 1911–1979, Italian composer.
- rrna — ribosomal RNA
- rtsa — real-time structured analysis
- ruga — Usually, rugae. Biology, Anatomy. a wrinkle, fold, or ridge.
- rusa — an Indonesian deer, Cervus timorensis, with a mane
- saba — an island in the Netherlands Antilles, in the N Leeward Islands. 5 sq. mi. (13 sq. km).
- saga — a medieval Icelandic or Norse prose narrative of achievements and events in the history of a personage, family, etc.
- sala — a large hall, living room, or reception room.
- sama — the Sufi practice of gathering to listen to religious poetry that is sung, often accompanied by ecstatic dance or other ritual.
- sana — Republic of, a country in S Arabia, formed in 1990 by the merger of the Yemen Arab Republic and the People's Democratic Republic of Yemen. 207,000 sq. mi. (536,130 sq. km). Capital: Aden.
- sara — a member of a people of the Central African Republic.
- sata — Serial Advanced Technology Attachment
- sava — a river flowing E from W Slovenia, through Croatia to the Danube at Belgrade, Serbia. 450 miles (725 km) long.
- sega — (company, games) manufacturer of video game hardware and software.
- sena — (in India) the army: used in the names of certain paramilitary political organizations
- sepa — Scottish Environment Protection Agency
- sera — a plural of serum.
- seta — a stiff hair; bristle or bristlelike part.
- sffa — Sales Force Automation
- shea — shea tree.
- shia — a member of one of the two great religious divisions of Islam that regards Ali, the son-in-law of Muhammad, as the legitimate successor of Muhammad, and disregards the three caliphs who succeeded him.
- shoa — a former kingdom in E Africa: now a province of Ethiopia. 25,290 sq. mi. (65,501 sq. km). Capital: Addis Ababa.
- shwa — the mid-central, neutral vowel sound typically occurring in unstressed syllables in English, however spelled, as the sound of a in alone and sofa, e in system, i in easily, o in gallop, u in circus.
- sica — Vittorio [vi-tawr-ee-oh,, -tohr-;; Italian veet-taw-ryaw] /vɪˈtɔr iˌoʊ,, -ˈtoʊr-;; Italian vitˈtɔ ryɔ/ (Show IPA), 1901–74, Italian motion-picture director, producer, and actor.