1‘the container is then permanently sealed’
for all time, forever, for good, for always, for good and all, for ever and ever, evermore, for evermore, in perpetuity, lastingly, indelibly, immutably, inalterably, invariably, until the end of time, everlastingly, enduringly, abidingly
North American forevermore
informal for keeps, until the cows come home, until hell freezes over, until doomsday, until kingdom come
archaic for aye
2‘I was permanently hungry’
continually, constantly, perpetually, perennially, always, forever, ever, invariably, eternally, persistently
We take a look at several popular, though confusing, punctuation marks.