Solution

HALT

4 clues

Cease

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

Other solutions to Cease

Discontinue

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

Other solutions to Discontinue

Stop

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

Other solutions to Stop

Terminate

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

Other solutions to Terminate

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