A pail is a bucket. Pale describes something light in colour, or a face lacking colour. Memory hook: a pail is a container you carry, while pale ends in the same -ale as sale and stale, a word about how something looks.
The core difference
Pail is a noun for a bucket, while pale is mainly an adjective meaning light in colour.
- pail — a round container with a handle: The children filled their pails with sand at the beach.
- pale — light in colour, or lacking colour: She looked pale after the long flight.
How to tell them apart
The words are pronounced the same. If you can carry it by the handle, it is a pail. If it describes colour, or someone looking unwell, it is pale.
The mix-up shows up in the phrase beyond the pale, meaning outside acceptable limits. It is never beyond the pail. Pale can also be a verb, as in her early work pales next to her later work.