The uncompressed audio format spoken as a word — sound kept whole, every sample present.
Short for Waveform Audio File Format, introduced in 1991, joining wave (Old English wagian/wafian) with audio (Latin audire, to hear) and format (Latin formare, by way of French), the name simply states what it stores: a sound wave's shape, kept whole.
The uncompressed audio format spoken as a plain word, sound kept whole with every sample present rather than thinned to save space.