Telltale

paljastava

(revealing something)

ilmiantaja

(one who divulges private information)

juorukello

(one who divulges private information)

juorukello

(tattletale; squealer)

juorulanka

(nautical: yarn that indicates relative direction of airflow)

kantelupukki

(tattletale; squealer)

näyttölaite

(engineering: contrivance for indicating or recording something)

paljastaja

(something that serves to reveal)

peräsinkulman osoitin

(nautical: mechanical attachment to the steering wheel)

virtauslanka

(nautical: yarn that indicates relative direction of airflow)