Agreement in gender refers to the grammatical alignment between nouns, pronouns, and adjectives based on their gender classification. In many languages, such as Spanish and French, nouns are categorized as masculine or feminine, and this classification affects the form of related words. For example, in Spanish, the adjective "bonito" (beautiful) changes to "bonita" to agree with a feminine noun. This concept is essential for maintaining clarity and coherence in sentences. When using pronouns, such as "he" or "she," the gender of the pronoun must match the gender of the noun it replaces. This agreement helps convey accurate meaning and ensures proper communication in gendered languages.