vague

/vag/
1.
nounfeminine

wave (sea)

wave, surge (of events, feelings, phenomena — e.g., a heatwave, a wave of migration)

À Biarritz, les vagues étaient énormes aujourd'hui.

The waves were huge in Biarritz today.

2.
adjective

vague, unclear, imprecise

C'est un peu vague ce que tu me racontes là.

What you're telling me is a bit vague.