agir

/a.ʒiʁ/
1.
verbInf2ndPres

to act; to take action

to have an effect; to work (e.g., a drug, a measure)

Il faut agir maintenant.

We must act now.

Synonyms:intervenir, faire quelque chose, se mobiliser, produire un effet
2.
verbInf2ndPres

to be about; to concern (used impersonally in the expression il s'agit de)

Il s'agit de ton avenir, prends ça au sérieux.

It's about your future — take this seriously.

Synonyms:concerner, être question de