settle down

Verb

settle down (third-person singular simple present settles down, present participle settling down, simple past and past participle settled down)

1. (ambitransitive) To make or become quiet and calm after a period of disturbance or restlessness.
   • It took John a while to settle down after the phone call.
   • In terms of passenger route mileage, the UK railway of early 1970 had settled down to close to the present level, although there was still some pruning to do.2020 April 8, Howard Johnston, “East-ended? When the ECML was at risk”, in Rail, page 69
2. (intransitive) To establish a settled lifestyle for oneself, especially by marrying.
3. (intransitive) To grow comfortable and familiar with one's new accommodation or circumstances.
   • I have not yet settled down in my new apartment.