tub, bucket
桶 centers on a wooden container for holding liquids or other materials: a tub or bucket.
桶 combines 木 (tree/wood) with 甬, which likely contributes the sound and the idea of a hollow container. Together they suggest a wooden vessel.
The left side is wood 木, and the right side 甬 looks like a container with a handle. Picture a wooden bucket made from tree planks.
For ヨウ, imagine a wooden bucket being used to carry water: you (ヨウ) lift the bucket by its handle. You -> ヨウ.
bucket; pail; tub
coffin; casket
bucket (for carrying sake, soy sauce, etc.)
manger; crib; trough
yellow plastic container used at public baths
vat for making rice wine
rain barrel
flat-bottomed wooden bowl for preparing sushi rice
small bucket
pail; bucket
bucket carried on either end of a pole
roughly made casket; quickly made casket
wooden vat; wooden tub
tub-sided samurai cuirass
barrel drum; drum with an uncurved body
bucket maker; well maker; cooper; hooper
tankan orange (Citrus tankan); tankan mandarin
barrel drum; drum with an uncurved body
pail (for water); bucket
washtub; dishpan; washing-up bowl