The Collaborative International Dictionary of English v.0.48:
Cromwell \Cromwell\ prop. n. Oliver Cromwell, b. 1599, d. 1658. Syn: Oliver Cromwell. [WordNet 1.5]WordNet (r) 3.0 (2006):
Cromwell n 1: English general and statesman who led the parliamentary army in the English Civil War (1599-1658) [syn: Cromwell, Oliver Cromwell, Ironsides]