telltale

Everyday

1. A telltale sign is a small clue that shows something is true or has happened: telltale crumbs on his face. tree →
2. (UK, Ireland, Australia, NZ; children's word) A telltale (or tell-tale) is a child who tells adults about other children's naughty behaviour, a tattletale (US). tree →

In the lessons

Stories and detective work: telltale signs and clues help solve a mystery. Science: «telltale signs» of a disease, or of rain. Playground: «Telltale tit!» is a rhyme children use to tease. Safety: telling a grown-up when someone is hurt, in danger or bullied is not being a telltale — it is the right thing to do.

Examples

• The chocolate on his chin was a telltale sign. tree →
• Muddy paw prints were the telltale clues. tree →
• Don't be a telltale! tree →
• Telling a teacher about bullying is not being a telltale. tree →
• Yawning is a telltale sign you need sleep. tree →
• The telltale smoke showed where the fire was. tree →

Note

Spelling: telltale or tell-tale (UK often hyphenated). US word for the person: tattletale. «Tell tales» (two words) = to tell on someone, or to tell lies. Getting help in danger is never «telling tales».