a in Spanish

a, hacia

used to show movement towards a place or person

• go/come/walk/run etc. a + somewhere

Collocations walk a long way · drive a short distance

• She walked a long way to get here.

  Ella caminó un largo camino para llegar aquí.

de, de parte de

used before the name of someone's job or role to show a relationship with that person

• be a + noun

Collocations a friend of mine · a student of the teacher

• He is a friend of my sister.

  Él es un amigo de mi hermana.

de, acerca de

used before the name of something to show that you are talking about it or referring to it

• talk/write etc. a + noun

Collocations a book about history · a letter to the editor

• I wrote a letter to the editor.

  Escribí una carta al editor.

de, por

used before an amount of something to show that you are talking about it or referring to it

• a + noun

Collocations a cup of coffee · a glass of water

• She had a cup of tea.

  Ella tomó una taza de té.

de, por

used before an amount of time to show that you are talking about it or referring to it

• a + noun

Collocations a day off · a week's holiday

• He took a day off work.

  Tomó un día libre de trabajo.

de, por

used before the name of someone to show that you are talking about them or referring to them

• a + noun

Collocations a friend of mine · a student of the teacher

• She is a doctor.

  Ella es una médica.

de, por

used before numbers to show that you are talking about them or referring to them

• a + noun

Collocations a hundred dollars · a thousand people

• It cost a million dollars.

  Costó un millón de dólares.

de, por

used before the name of something to show that you are talking about it or referring to it in a general sense

• a + noun

Collocations a good idea · a bad decision

• It's a good idea.

  Es una buena idea.