Webster's English Dictionary

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pillow

1. pil.low \'pil-(.)o-, -*(-w)\ n [ME pilwe, fr. OE pyle; akin to OHG 
   pfuliwi pillow; both fr.]a prehistoric WGmc word borrowed fr. L pulvinus 
   pillow 1: a support for the head of a sleeping person; esp : a cloth bag f 
   illed with feathers, down, or sponge rubber : CUSHION 2: a block or support 
   used esp. to equalize or distribute pressure  3: a cushion or pad tightly 
   stuffed and used as a support for the design an d tools in making lace with 
   a bobbin
2. pillow vt 1: to rest or lay on or as if on a pillow  2: to serve as a 
   pillow for  : to lay or rest one's head on or as if on a pillow