Houki Boshi
The word for "comet" in Japanese is "ほうき星," or "houkiboshi." It is pronounced "hoe-kee-boh-she." You may also use the word "suisei" (pronounced "swee-say").
彗星 (すいせい) suisei
彗星 /sui sei/ means 'comet' in Japanese. 流れ星 /na ga re bo shi/ is the Japanese term for 'shooting star'. 流星 /ryuu sei/ also means 'shooting star, meteor' but more in scientific/literal usage.
from the greek word comet, meaning "to comet"
彗星 Suisei
Komet
彗星 /sui sei/ : comet 流れ星 /na ga re bo shi/ : meteor, shooting star (more common/folklore etc usage) 流星 /ryuu sei/ : meteor (more literal/less common usage)
it is likely you mean Comida which means food
धूम्रकेतु dhūmrakētu
comet
Yuji Hyakutake, from southern Japan, discovered the comet Hyakutake
This is not a Japanese word.