cover, extend over, guard, watch
Les voitures de patrouille couvrent toute la zone.
Patrol cars cover the entire area.
Vérifiez que vos hommes couvrent les entrées et sorties.
Check that your men are covering the entrances and exits.
— Arrête-moi si tu peux (2002)
De nombreuses lignes de chemin de fer couvrent le pays.
Many railway lines cover the country.
Ces machins-là couvrent une zone plutôt large, il me semble.
These things cover a rather large area, it seems to me.
— Bugonia (2025)
Les feuilles mortes couvrent le jardin en automne.
The garden is covered in dead leaves in autumn.
Ses études couvrent un vaste domaine.
His studies cover a wide field.