Wordiyo
RootsVocabularyCoursesGuidesMy WordsPricing
Wordiyo

Build your English vocabulary systematically through roots and etymology.

Explore

  • Roots
  • Vocabulary
  • My Words

Learn

  • Guides
  • Pricing

Company

  • About
  • Terms
  • Privacy

© 2026 Wordiyo.

  1. Home
  2. /rat
  3. /ratify

ratify

UK/'rætifai/US
TOEFLGREA1

Definitions

v.

To give formal approval to a treaty, agreement, or decision, making it official.

正式批准,正式认可(条约、协议、决定)。

Root Breakdown

Root-derived
ratreckoned, calculated, fixed, valid
+
-i-connector
+
-fyto make, to cause to become
=ratify

rat- ('reckoned, fixed, valid,' from ratus) + a hidden -fic-/-fy ('to make') = 'to make valid.' To ratify a treaty is to give it official, settled force by formal agreement — the moment a draft becomes binding. The -fy here is the same 'make' suffix in verify and clarify.

Root rat_reckon still carries 13 more words

Usage Guide

Strongly formal/legal-political register. You ratify treaties, constitutional amendments, agreements, and appointments — not everyday decisions. The body that ratifies is usually a parliament, senate, or assembly.

Example Sentences

  • 1.

    Congress must ratify the treaty before it takes effect.

  • 2.

    The member states ratified the new agreement last month.

Easily Confused

ratify vs approve — approve is general (approve a plan, approve of a choice). ratify is the formal, final step that gives legal force, almost always to treaties and amendments. You can approve a draft in committee, but a legislature must ratify it to make it binding.

Word Forms

Verb

Pastratified
3rd Personratifies
Past Part.ratified
Pres. Part.ratifying

Derivatives

ratification
← Back to rat