Translation

monkī means "Monkey" in English.
It's a katakanization, a loan-word.

monkī is normally written with katakana, as モンキー.
monkī written with hiragana is もんきー.
monkī does not have kanji.
Romaji mo n kii
Katakana
Hiragana

Orthography Notes

Synonyms

Further Reading

Wikipedia: (Monkey)
nihonzaru 日本猿.