Learn Spanish (Latin America): Echo sal a la sopa.

This sentence shows the literal, everyday meaning of the verb echar: to throw, pour, or put something in. The phrase echarse a + infinitive is a special idiomatic structure. When you see echar followed by a noun like sal (salt) instead of an infinitive verb, it usually just means 'to put' or 'to add'.

Could I use verbs like agregar or añadir instead of echar here?

Yes, absolutely! Agrego sal or Añado sal both mean 'I add salt' and are perfectly correct. However, echar is incredibly common in spoken, everyday Spanish for putting an ingredient into a dish or a liquid into a container (like putting gas in a car).

Is echo related to hecho?

No, they are completely different words, but they sound exactly the same! Echo comes from echar (to throw/add) and has no 'h'. Hecho is the past participle of hacer (to do/make). Because they sound identical, even native speakers sometimes mix up their spelling. Just remember: the verb echar 'throws away' the H.

Why is it just sal and not la sal if Spanish usually requires articles before nouns?