that

Pronoun/Determiner/Conjunction
  1. Refers to a specific thing or person previously mentioned or understood. Pronoun/Determiner/Conjunction
    I saw that yesterday.
  2. Indicates a particular degree or extent. Pronoun/Determiner/Conjunction
    That’s too expensive.
  3. Introduces a clause expressing purpose or result. Pronoun/Determiner/Conjunction
    She was so tired that she fell asleep immediately.
synonyms: this, the, such, which