He's not a casual acquaintance whom you barely know.
He had an acquaintance with the literature.
Happy to make your acquaintance, Miss Sidwell.
Of this school, which had Lagrange for its professor of mathematics, we have an amusing account in the life of Gilbert Elliot, 1st earl of Minto, who with his brother Hugh, afterwards British minister at Berlin, there made the acquaintance of Mirabeau.
He also gained a thorough acquaintance with the French language.