adjective

contagious

contagious, infectious, catching

The flu is a contagious illness.

The flu is a contagious illness.

Her laughter is contagious.

Her laughter is contagious.

((be)) contagious to be able to be passed from one person to another The flu is a contagious illness.

Synonyms: infectious, catching; Antonyms: non-contagious

From Latin 'con-' (with, together) + 'tangere' (to touch). Literally 'touching together'.

Think of 'contact'. A contagious disease spreads through contact. It can also describe emotions.

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