Synonyms of the word

ratify

• v. (transitive) To give formal consent to; make officially valid.

formalise

• v. Alternative spelling of formalize.

formalize

• v. To give something a definite form; to shape.
• v. To give something a formal or official standing.
• v. To act with formality.

sign

• n. (sometimes also used uncountably) A visible indication.
• n. A clearly visible object, generally flat, bearing a short message in words or pictures.
• n. (astrology) An astrological sign.
• n. (mathematics) Positive or negative polarity. (Note: it is improper to place a sign on the number zero).
• n. A specific gesture or motion used to communicate by those with speaking or hearing difficulties; now specifically,…
• n. (uncountable) Sign language in general.
• n. An omen.
• n. (medicine) A property of the body that indicates a disease and, unlike a symptom, is unlikely to be noticed…
• n. A military emblem carried on a banner or standard.
• v. To make a mark.
• v. To make the sign of the cross.
• v. To indicate.

validate

• v. To render valid.
• v. To check or prove the validity of; verify.