Dravidian and Tongue

Dravidian noun - A large family of languages spoken in south and central India and Sri Lanka.

Tongue and Dravidian are semantically related. In some cases you can use "Tongue" instead a noun "Dravidian".

Tongue noun - The stock of words, pronunciation, and grammar used by a people as their basic means of communication.

Dravidian and tongue are semantically related. Sometimes you can replace term "Dravidian" with "Tongue", this nouns are similar.