Словарь

acquaintance

Существительное

Пример: “He is only an acquaintance, not a close friend.”

Синонимы: contact, associate

Антонимы: stranger, close friend

familiarize

Глагол

Пример: “New employees are given time to familiarize themselves with the system.”

Синонимы: acquaint, introduce

Антонимы: confuse, alienate

preliminary

/prɪˈlɪmɪneri/

Пример: “These are preliminary results.”

Синонимы: overture, prelude, exploratory