It depends.
γρήγορος (grigoros) for fast man
γρήγορη (grigori) for fast woman
γρήγορο (grigoro) for fast thing
Or if you mean fast as "quickly" then its γρήγορα (grigora)
grigoro fagito
TAXI known world wide. from the ancient greek word ταχὺ ,(Koine) IPA: /taˈxi/and means fast. Using the TAXI, we want to get some were FAST .
As an adjective: celerAs an adverb: celeriter
radish
the greek word for egg is: avgo
There is no Greek word for golf. We use the word ''golf'' or in Greek letters ''Γκόλφ''.
There is no word for jeans in Greek. We use the word ''jeans'' or in Greek letters τζίνς.
The greek word for animal is zodiac. The greek word for turtle is still unknown.
Psychology is a a Greek word. Greek : ψυχολογία
The Greek word for heavy in Greek is Βαρύς(varis).
The Greek word for "Deal" is "αντιμετώπιση".
The Greek word for "Dice" is "ζάρια".