🚫symbole d’interdictionProhibited. Means forbidden, banned and "not allowed". Use it for rules and "nope" moments.
⚠️symbole d’avertissementA warning. Means caution, danger and "heads up". Use it for warnings and important notices. Alternative: ⚠️ — same.
🙅personne faisant un geste d’interdictionA person gesturing NO — crossed arms. Conveys refusal and denial.
🔞18 ans et plusNo one under eighteen. Means 18+ content and age limits. Use it for age-restricted warnings.