9-letter words containing r, a, d, i, o
- tailboard — the tailgate, especially of a wagon or truck.
- thyroidal — of or relating to the thyroid gland
- tradition — the handing down of statements, beliefs, legends, customs, information, etc., from generation to generation, especially by word of mouth or by practice: a story that has come down to us by popular tradition.
- trainload — the cargo or passenger capacity of a train.
- trapezoid — Geometry. a quadrilateral plane figure having two parallel and two nonparallel sides. British. trapezium (def 1b).
- trematoid — relating to a trematode
- uncordial — unfriendly
- validator — to make valid; substantiate; confirm: Time validated our suspicions.
- varioloid — resembling smallpox.
- video art — an art form involving the creative exploitation of video technology to produce videotapes for viewing on a television screen.
- videogram — an audiovisual recording, as on a videotape or DVD
- war widow — A war widow is a woman whose husband was killed while he was in the armed forces during a war.
- wild boar — a wild Old World swine, Sus scrofa, from which most of the domestic hogs are believed to be derived.
- woodgrain — a material or finish that imitates the natural grain of wood in pattern, color, and sometimes texture.