Whitecap

1. n. A wave whose crest breaks into white foam, as when the wind is freshening.
2. n. The European redstart; — so called from its white forehead.
3. n. The whitethroat; — so called from its gray head.
4. n. The European tree sparrow.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.