signi

In a sentence

• No sé què signi això.

  I don't know what that means.

  Here, 'signi' is used in a subjective context, expressing uncertainty, implying its meaning in the subjunctive present tense.

• Espero que signi el contracte.

  I hope he/she/you (formal) signs the contract.

  Here, 'signi' follows the verb 'Espero que' (I hope that) and is in the subjunctive present tense, expressing a desire or wish.

• Si signi els papers, començarà el projecte.

  If he/she/you signs the papers, the project will begin.

  Here, 'signi' is used after a conditional conjunction in a hypothetical scenario, also implementing the subjunctive mood.