Backpack

/ˈbæk.pæk/ noun, verb

noun, verb ·Uncommon ·College level

Meaning at a glance

  • Primary sense: A knapsack, sometimes mounted on a light frame, but always supported by straps, worn on a person’s back for the purpose of carrying things, especially when hiking, or on a student's back when carrying books.
  • Grammar: backpack is listed as noun, verb.
  • Nearest alternatives: knapsack, rucksack, haversack, packsack.
  • Useful contrasts: attache, attaché, briefcases.
  • Usage evidence: After that, I left, but then I realized that I forgot my backpack at their house.

How to use "backpack"

  1. Start with the primary definition, then check the part of speech before placing the word in a sentence.
  2. Compare nearby synonyms to make sure "backpack" carries the exact meaning, tone, and strength you need.
  3. Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.

Meaning check

  • Does the word fit the sentence's grammar?
  • Does it match the intended tone rather than only the dictionary definition?
  • Would a simpler synonym be clearer for the reader?
  • Is there enough surrounding context to prevent ambiguity?

Source and review context

This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "backpack" in a final draft.

If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.

Before you rely on this definition

Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "backpack" as the right word for your sentence.

If your draft is formal, technical, persuasive, or sensitive, compare "backpack" with a nearby alternative so the final choice matches both meaning and reader expectation.

Compare nearby meanings

  • Use synonyms when you need a softer, stronger, simpler, or more specific word.
  • Use antonyms to check the boundary of the meaning and avoid accidental contrast.
  • Use the example sentence to confirm the word behaves naturally in context.
  • Keep the original wording when a replacement adds complexity without improving precision.

Definition decision workflow

1. Identify the role

Check whether "backpack" is acting as noun, verb in your sentence. A definition is only useful when the grammar matches the way the word is being used.

2. Test the nearest option

Compare it with "knapsack" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.

3. Confirm with context

Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.

Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.

Final meaning check

Before publishing a sentence with "backpack", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.

When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.

Definitions

Noun
  1. 1
    A knapsack, sometimes mounted on a light frame, but always supported by straps, worn on a person’s back for the purpose of carrying things, especially when hiking, or on a student's back when carrying books.

    "Rachel discovered that she could also keep things in her backpack that were important to her, nobody would know about them because they would be hidden. These important things included a small round rock that she had found […]"

  2. 2
    a bag carried by a strap on your back or shoulder wordnet
  3. 3
    A similarly placed item containing a parachute or other life-support equipment.
Verb
  1. 1
    To hike and camp overnight in backcountry with one's gear carried in a backpack. intransitive

    "I spent a month backpacking in the Rockies."

  2. 2
    hike with a backpack wordnet
  3. 3
    To engage in low-cost, generally urban, travel with minimal luggage and frugal accommodation. intransitive
  4. 4
    To place or carry (an item or items) in a backpack. rare, transitive

    "Astronauts backpack oxygen during spacewalks."

Antonyms

Example

"After that, I left, but then I realized that I forgot my backpack at their house."

Common questions

What does "backpack" mean?

A knapsack, sometimes mounted on a light frame, but always supported by straps, worn on a person’s back for the purpose of carrying things, especially when hiking, or on a student's back when carrying books.

What is a synonym for "backpack"?

Common synonyms include: knapsack, rucksack, haversack, packsack, back pack, backload.

How do you use "backpack" in a sentence?

After that, I left, but then I realized that I forgot my backpack at their house.

How do you pronounce "backpack"?

Pronounced /ˈbæk.pæk/.

Etymology

From back + pack.

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