- a petty, unimportant king
- any of several small Old World warblers (genus Regulus) with a bright-colored crown, as the (R. satrapa) of North America
See kinglet in American Heritage Dictionary 4
- Any of several small, grayish North American birds of the genus Regulus, having a yellowish or reddish patch on the crown of the head.
- A king ruling a kingdom considered small or unimportant.
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