puff

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Related to puffing out: puffing up

puff

[pəf]
(electricity)
(mechanical engineering)
A small explosion within a furnace due to combustion conditions.

puff

(algorithm)
To decompress data that has been crunched by Huffman coding. At least one widely distributed Huffman decoder program was actually *named* "PUFF", but these days it is usually packaged with the encoder.

Opposite: huff.