渡りに船

わたりにふね

windfall, godsend (like a finding a ship when one needs to cross)

渡り

わたり

ferry

手に渡る

てにわたる

to fall into someone's hands; to pass into another's possession

に渡って

にわたって

throughout, over a period of..., over a span of...

古渡り

こわたり

old imported article

刃渡り

はわたり

length of a blade (sword, knife, etc.)

不渡り

ふわたり

non-payment, dishonouring (bill), dishonoring (bill), bouncing (cheque, check)

世渡り

よわたり

making a living, getting on in the world, subsistence

綱渡り

つなわたり

tightrope walking, funambulism

渡り板

わたりいた

gangplank

腕渡り

うでわたり

brachiation, swinging from branch to branch

渡り鳥

わたりどり

migratory bird, bird of passage

谷渡り

traveling from valley to valley; crossing a valley

渡り箸

わたりばし

using one's chopsticks to jump from side dish to side dish without pausing to eat rice in between (a breach of etiquette)

渡り蟹

わたりがに わたりかに ワタリガニ ワタリカニ

swimming crab (Portunus trituberculatus), Japanese blue crab

一渡り

ひとわたり

briefly, in general, roughly, from beginning to end, through (e.g. glancing, flipping)

渡り者

わたりもの わたりしゃ

wanderer

火渡り

ひわたり

fire-walking (walking over fire or burning coals)

猿渡り

さるわたり

monkey bars, horizontal ladder