perdu
lost (unable to find one's way)
lost/misplaced (an object)
Je suis perdu, je ne retrouve pas mon chemin.
I'm lost; I can't find my way.
confused; clueless; not understanding what's happening
Attends, je suis perdu — on parle de qui, là ?
Wait, I'm lost — who are we talking about?
lost/irrecoverable; defeated (as in a contest, cause, or situation)
Le match est perdu d'avance.
The match is lost from the start.
Notes
GENERAL INFO
Perdu means "lost" or "missing." It is an adjective (e.g., *lost, bewildered*) and the past participle of the verb "perdre" (to lose).
USAGE
As an adjective: "Je suis perdu" (I am lost/bewildered). "Une ville perdue" (a lost city).
As a past participle with "avoir": "J'ai perdu mes clés" (I lost my keys).
TRAPS
As an adjective, perdu must agree in gender and number: *perdue* (f.s.), *perdus* (m.p.), *perdues* (f.p.). When used with "avoir" as a past participle, perdu is usually invariable unless the direct object precedes the verb (e.g., "Les clés que j'ai perdues").
