JMdict entry #1421580

1. Godan verb with 'mu' endingintransitive verb word usually written using kana alone to slacken; to loosen; to relax; to droop (e.g. loose or flabby skin); to sag (ceiling)
2. Godan verb with 'mu' endingintransitive verb word usually written using kana alone to slack off (e.g. one's work, attention); to not put one's heart in