ring in
US /rɪŋ ɪn/
UK /rɪŋ ɪn/

1.
2.
celebrar, inaugurar
to mark the beginning of something, especially a new period of time, with a celebration or special event
:
•
We always ring in the New Year with fireworks.
Nós sempre celebramos o Ano Novo com fogos de artifício.
•
The town decided to ring in the new century with a grand festival.
A cidade decidiu celebrar o novo século com um grande festival.