I. verb — [with obj.] ( acquaint someone with) 1. make someone aware of or familiar with • new staff should be acquainted with fire exit routes
• you need to acquaint yourself with the house style.
2. ( be acquainted) — know someone slightly • I am not acquainted with any young lady of that name
• I’ll leave you two to get acquainted.
– origin Middle English: from Old French acointier ‘make known’, from late Latin accognitare, from Latin accognoscere, from ad- ‘to’ + cognoscere ‘come to know’.