The act of flying or leaping; a noun form referring to movement through the air or a jump.
彼女の飛びはとても力強く、ジャンプが高い。
Her jumps are very powerful and high.
飛びの瞬間を写真に収めたい。
I want to capture the moment of the jump in a photo.
鳥の飛びを間近で見ると、翼の動きがよく分かる。
Watching a bird in flight up close makes its wing movements easy to see.
A way of reading numbers where zero is called 'tobi' (often in older or colloquial readings).
古い書類では電話番号の0を『とび』と表記していることがある。
In old documents you may see zeros in phone numbers written as 'tobi'.
Flying fish (tobiuo). Often refers specifically to flying fishes caught in Japanese waters.
夏には市場で新鮮な飛び（飛び魚）が手に入る。
In summer you can get fresh flying fish at the market.
In mahjong, 'tobi' refers to running out of points (a player being eliminated or the game ending because a player's score drops to zero or below).
序盤で失点が重なり、最終的にトビになってしまった。
After losing points early on, I ended up going 'tobi' (running out of points).
In the game of go, 'tobi' (a jump) denotes a move that jumps a distance, such as the 'ikken-tobi' (one-space jump). Usually written in katakana (トビ).
この局面では一間トビが有力な手だ。
In this position, an ikken-tobi (one-space jump) is a strong move.