Collins COBUILD Advanced Learner's English Dictionary - acquainted

1. If you are acquainted with something, you know about it because you have learned it or experienced it. (FORMAL) He was well acquainted with the literature of France, Germany and Holland... = familiar ADJ: v-link ADJ with n 2. If you are acquainted with someone, you have met them and you know them. You can also say that two people are acquainted. (FORMAL) No-one personally acquainted with the couple was permitted to talk to the Press... It’s true we were acquainted, but no more than that. ADJ: v-link ADJ, usu ADJ with n 3. If you get or become acquainted with someone that you do not know, you talk to each other or do something together so that you get to know each other. You can also say that two people get or become acquainted. The meetings were a way to get acquainted with each other. ADJ: v-link ADJ, oft ADJ with n 4. see also acquaint