marry = take as husband or wife

• Tony is going to marry Elsa.
• She married a lawyer.

marry = to perform the ceremony of marriage as a priest or official

• Which priest is going to marry them?
• The Registrar married them in the Registrar’s office.

marry = give in marriage

• He married his only daughter to a business magnate.
• My father is going to marry me to his accountant’s son.
• She has married all her daughters to Doctors.