Synonyms for Elongate (same or very similar meaning)
WordNet sense 1 (of a leaf shape; long and narrow):
linear
WordNet sense 2 ((botany) of leaf shapes; of leaves having no divisions or subdivisions):
simple, unsubdivided
WordNet sense 3 (having notably more length than width; being long and slender):
elongated
WordNet sense 4 (make long or longer by pulling and stretching):
stretch
From the ODE community, based on WordNet
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