/
pɪˈnɪnsjʊlə/
n.
a long, narrow piece of land projecting out into a sea or lake.
Derivative
Usage
Do not confuse the spellings peninsula and peninsular. Peninsula is a noun (the end of the Cape Peninsula), whereas peninsular is the adjectival form (the peninsular part of Malaysia).
Etymology
C16: from L. paeninsula, from paene ‘almost’ + insula ‘island’.