Meaning ofpillowin English

Noun

1. a soft headrest for sleeping; comfort
2. a supportive neck or head cushion
3. a geological lava formation
   The pillow lava formed under the ocean's surface.
4. a metal/wood support piece (in engineering)
   The engineer designed a pillow block to support the shaft.
5. a nautical block under a bowsprit's inner end
   The sailor checked the pillow to ensure it was secure.