fasten
US /ˈfæs.ən/
UK /ˈfæs.ən/

1.
2.
fixer, concentrer
to direct one's eyes or attention steadily or intently toward something
:
•
He fastened his gaze on the distant ship.
Il fixa son regard sur le navire lointain.
•
Her attention was fastened on the speaker.
Son attention était fixée sur l'orateur.