Cases of word usage

1) (a length of) cotton, silk, wool etc, especially for use in sewing and weaving; something long and thin like a thread; a line of thought or action (connecting parts of a story etc); the spiral ridge round a screw or bolt; to pass a thread through the eye of (a needle) (thread)

2) a long ridge of water, especially on the sea, curling over and breaking on the shore; a steady increase and spread; a group of wavelengths used for radio broadcast; to move to and from, up and down (wave)