Gastar vs. Desperdiçar in Portuguese: Spend or Waste — Practice

Use gastar for money, time, energy, or a resource

Gastar can mean to spend money or use time and energy. It is not automatically negative: gastar dinheiro numa viagem can simply mean spending money on a trip. With time, gastar duas horas describes how long an activity took or how much time you used.

The rest of the sentence explains whether the amount was expected, useful, or excessive. If you only want to report the amount, gastar is the direct choice.

Use desperdiçar when you mean waste

Desperdiçar means to waste or fail to use something well. It often sounds evaluative: desperdiçar comida (waste food), desperdiçar uma oportunidade (waste an opportunity), or desperdiçar tempo (waste time). A speaker is saying that the resource or chance was not used to good effect.

Gastar and desperdiçar can describe the same amount, but they express different judgments: gastei a tarde estudando (I spent the afternoon studying) versus desperdicei a tarde (I wasted the afternoon).

Remember: Gastar reports spending or using a resource; desperdiçar adds the judgment that it was wasted. Choose based on the meaning you intend, not only the English word ‘spend.’

Check your understanding

Choose the English meaning of each Portuguese example. Answer before looking back at the tables. These questions check the written examples in this guide; they are not a listening or proficiency test.

Recall the Portuguese, then say it

Read the English prompt and say a Portuguese version before opening the answer. The answer shows the example from the lesson; other natural translations may also work. Compare the meaning and the situation rather than counting a different word as automatically wrong.

1. I spent forty reais on lunch.

   Show a Portuguese answer

   Gastei quarenta reais no almoço.

2. We spent the whole morning organizing the files.

   Show a Portuguese answer

   A gente gastou a manhã inteira organizando os arquivos.

3. Does this device use a lot of energy?

   Show a Portuguese answer

   Esse aparelho gasta muita energia?

4. I don’t want to waste this opportunity.

   Show a Portuguese answer

   Não quero desperdiçar essa oportunidade.

5. There was food left over, but it wasn’t wasted.

   Show a Portuguese answer

   A comida sobrou, mas não foi desperdiçada.

6. I spent two hours trying to fix the error.

   Show a Portuguese answer

   Gastei duas horas tentando resolver o erro.

Make the phrase useful to you

Choose one example you could actually use. Say it once from memory, then change one detail that fits your life, such as the person, place, time, or object. Check whether your change also needs a different verb form, article, or adjective ending. If it does, compare it with the pattern in the explanation.

Gastar reports spending or using a resource; desperdiçar adds the judgment that it was wasted. Choose based on the meaning you intend, not only the English word ‘spend.’

Return to two prompts tomorrow without opening the answers first. If a phrase still feels difficult, shorten it to a useful chunk and build the complete sentence again.

Sources and your next lesson

This I Speak Portuguese practice guide builds on our Gastar vs. Desperdiçar in Portuguese: Spend or Waste? lesson on Real Life Portuguese, with written recall tasks and additional speaking practice. The explanations and examples are teaching material; the practice questions are exercises, not a transcript of a recording.

To add Brazilian audio to your routine, choose a lesson in the Real Life Portuguese app. The app offers its own lessons and practice; this page does not imply that every example here has an app recording.