4 words for BFX 1–2 letters

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1 letter (3)

b f x
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2 letters (1)

fb
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Hint 1 meaning
To cause to flow in a stream, as a liquid or anything flowing like a liquid, either out of a vessel or into it; as, to pour water from a pail; to pour wine into a decanter; to pour oil upon the waters; to pour out sand or dust.
Hint 2 anagram
ORUP
Hint 3 another clue
Stream
4 +2