Solution

EXTEND

2 clues

Lengthen

Word class: Verb
Nature of clue: Synonym
Difficulty: Very easy
Sources: Boatload Puzzles

Other solutions to Lengthen

Prolong

Word class: Verb
Nature of clue: Synonym
Difficulty: Very easy
Sources: Boatload Puzzles

Words are categorized by artificial intelligence: there can be mistakes.