elongate

/ˈiːlɒŋgeɪt ‍ˈईलॉङ्‌गेट्‌/ verb [I, T]

to become longer; to make something longer लंबा हो जाना; लंबा कर देना

The seal pup’s body elongates as it gets older.

▶ elongation /ˌiːlɒŋˈgeɪʃn ˌईलॉङ्‌ˈगेश्‌न्‌/ noun [U] लंबा करने की क्रिया

the elongation of vowel sounds