noun - a personal computer designed to be used on a desk or table, usually having a separate monitor, keyboard, mouse, etc.
noun - the time when the sea is at its lowest level and the water has moved far back from the shore
noun - the time when the sea reaches its highest level and comes furthest up the shore
noun - a continuous, soft, low, and fast spinning sound
verb - to make a continuous, soft, low, and fast spinning sound, or to move while making such a sound