catch sight of

US /kætʃ saɪt ʌv/
UK /kætʃ saɪt ʌv/
"catch sight of" picture
1.

apercevoir, entrevoir

to suddenly see something or someone, especially when you are looking for them

:
I managed to catch sight of the rare bird before it flew away.
J'ai réussi à apercevoir l'oiseau rare avant qu'il ne s'envole.
She suddenly caught sight of her friend in the crowd.
Elle aperçut soudainement son amie dans la foule.