🇬🇧🇪🇸 auxiliary - auxiliar : English Lesson

Meaning of "auxiliary" ("auxiliar"), detailed definition, and a short video lesson below.

The word auxiliary means something that provides extra help or support when needed. It can describe backup power, assistant workers, or anything that is not the main thing but still important. For example, a car might have auxiliary lights, or a spaceship might have an auxiliary engine in case the main one stops working.

Watch and listen to this English flashcard to understand the word in more detail, with an easy example sentence.

Our school bus broke down, so we had to use auxiliary transportation—walking.

The WiFi stopped working, so I had to use auxiliary entertainment—talking to my family.

I brought an auxiliary sandwich to school because I don’t trust the cafeteria food.

My dog has an auxiliary food bowl, just in case he finishes the first one too fast.

I told my mom I needed auxiliary homework help—so she did it for me.

At midnight the fishing boat's main engine died; only the auxiliary engine hummed. The captain lifted an auxiliary lamp and saw a child waving. An auxiliary oar cut the dark water while an auxiliary battery powered a radio. The auxiliary crew pulled them close. Everyone breathed; relief and quiet smiles ended the night.

This word is at the C2 level, which means it represents the highest mastery of English. It’s often used in specialized or highly formal contexts and helps you communicate with precision and subtlety, much like a native speaker.

Expanding your English vocabulary is one of the best ways to improve your pronunciation, spelling, and confidence in English. Watch the video above to memorize the word, understand its meaning, and see example sentences in action. Discover related words to grow your vocabulary naturally. Add words to your playlist for stress-free, effective learning—anytime, anywhere! Watch, learn, repeat.