at
at præp. ved; på (fx stay at a hotel in London);□ at home hjemme; at that (very) moment i det øjeblik;
* Now, at (i en alder af) 62, he lectures on these topics at US universities, he started smoking at 10, he wrote his first novel at 22 (som 22-årig) , even at (selv i en alder af) 65, he still works with heavy weights and he does 50-75 push-ups a day, at 35, you are too old for football.