14-letter words containing b, u, t, y
- whistling buoy — a buoy having a whistle operated by air trapped and compressed in an open-bottomed chamber by the rising and falling water level caused by natural wave action.
- white mulberry — See under mulberry (def 2).
- witchetty grub — the large white larva of any of several species of moth and beetle of Australia, especially of the moth genus Cossus, occurring in decaying wood and traditionally used as food by Aborigines.
- you bet (you)! — certainly!
- yttrocolumbite — Yttrotantalite.