This is the 9567th most frequent Catalan word.
inverteixin
"Invest" or "turn upside down" (depending on context).
The verb "inverteixin" is used here in the present subjunctive third-person plural form, referring to a suggestion or advice regarding investment.
És important que inverteixin en educació per al futur.
It is important that they invest in education for the future.
Here, "inverteixin" is again in the present subjunctive mood, reflecting a wish or demand for the children to allocate their time thoughtfully.
Els pares volen que els seus fills inverteixin el seu temps en activitats enriquidores.
The parents want their children to invest their time in enriching activities.
In this instance, "inverteixin" denotes a hypothetical future action in the present subjunctive mode, conditional on another future event.