mynheer UK /mʌɪnˈhɛː/US /maɪnˈhɛ(ə)ɹ/ noun1 •Sir, as a polite form of address to a Dutchman or Afrikaner.My hand, bully; thou shalt have egress and regress; said I well? and thy name shall be Brook. It is a merry knight. Will you go, mynheers? — 1597 formsmynheeren · mynheers