weft

Short definition from Wiktionary

Noun

1. 1
   The horizontal threads that are interlaced through the warp in a woven fabric.
2. 2
   The yarn used for the weft; the fill.
3. 3
   A hair extension that is glued directly to a person′s natural hair.
4. 4
   Alternative spelling of waif.

Phrase

1. 1
   Acronym of wing(s)), engine(s), fuselage(s), tail(s), a mnemonic for airplane identification, of most the most identifiable parts of the aeroplane, that can be used to distinguish one aircraft from another.