Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
cone [kəun] n (shape) ко́нус; (on road) конусообра́зное доро́жное загражде́ние; (BOT) ши́шка#; (CULIN) ва́фельная тру́бочка*(для моро́женого)
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.