The phrase "acquainted themselves" is correct and usable in written English.
It can be used when referring to individuals who have become familiar with someone or something.
Example: "Before starting the project, the team acquainted themselves with the new software to ensure a smooth transition."
Alternatives: "familiarized themselves" or "got to know".
Workers stuffed parachutes under their desks, were given particle masks, acquainted themselves with Geiger counters.
"Probably it is best for police officers to avoid using hand gestures until they have acquainted themselves with what they mean to the community members whom they serve".
Along the way, they acquainted themselves with a host of horrific pieces of Americana, from a flamingo-themed hotel in Idaho to peanut-butter burgers in Mississippi and standard-issue cheap motels pretty much everywhere.
The network hired a showrunner, Tami Sagher, but during the course of the season, as Jacobson and Glazer acquainted themselves with the peculiar rituals and unremitting schedule of producing a TV series, they began to feel that they ought to be in charge themselves.
Anyone who's vaguely acquainted themselves with Revelation knows it's going to get way worse than Trump and his pin-up bride.
But while a number of celebrities and public figures, from M.I.A. to President Obama, have acquainted themselves with the burgeoning technology, few have been as vocal as Will.i.am is about its implications.
They removed snivelling Lizzy and re-acquainted themselves with the novel itself – but they kept sexy Darcy.
And after a 22-game winning streak, the second longest in NBA history, the Houston Rockets finally re-acquainted themselves with defeat last night, sustaining an emphatic 94-74 loss to the Boston Celtics.
Perhaps they could acquaint themselves with a greater God".
In areas where several boulangeries exist, residents acquaint themselves with their products.
Chaos has resulted, as sales representatives try to acquaint themselves with new accounts.
