This is the 293rd most frequent Catalan word.
màxim
Maximum.
Here, 'màxim' functions as an adjective, indicating the upper limit or cap of the speed permitted.
El límit de velocitat en aquesta carretera és de 120 km/h màxim.
The speed limit on this road is a maximum of 120 km/h.
In this example, 'màxim' is used as a noun implying the furthest time by which something can happen, conveying the latest permissible moment.
Hauràs d'entregar el treball com a màxim dilluns vinent.
You will have to hand in the assignment by next Monday at the latest.
In this sentence, 'màxim' is used as an adjective meaning 'highest' or 'greatest', referring to the rank of the responsible person in the company.