What does "airlock" mean?
A sealed, airtight chamber, such as in a manned spacecraft or submarine, used to provide access to and from the sealed area without allowing air out or water in.
Airlock
noun, verb, slang
noun, verb, slang ·2 syllables ·Moderate ·College level
Meaning at a glance
- Primary sense: A sealed, airtight chamber, such as in a manned spacecraft or submarine, used to provide access to and from the sealed area without allowing air out or water in.
- Grammar: airlock is listed as noun, verb, slang.
- Nearest alternatives: air lock.
- Usage evidence: Throw our prisoner out the airlock.
How to use "airlock"
- Start with the primary definition, then check the part of speech before placing the word in a sentence.
- Compare nearby synonyms to make sure "airlock" carries the exact meaning, tone, and strength you need.
- 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 "airlock" 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 "airlock" as the right word for your sentence.
If your draft is formal, technical, persuasive, or sensitive, compare "airlock" 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 "airlock" is acting as noun, verb, slang 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 "air lock" 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 "airlock", 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 A sealed, airtight chamber, such as in a manned spacecraft or submarine, used to provide access to and from the sealed area without allowing air out or water in.
"At the head of the machine, we are shown the airlock through which people have to pass to work on the cutting head, as it operates under pressure to prevent leakages into the tunnel."
- 2 a chamber that provides access to space where air is under pressure wordnet
- 3 A vestibule, foyer or entranceway with doors to the exterior on one end and doors to the interior on the other, functioning to keep indoor and outdoor air, humidity, and air temperatures separate. informal
- 4 Alternative form of air lock. alt-of, alternative
Verb
- 1 To secure with an airlock. transitive
- 2 To dispose of through an airlock. transitive
"Delighted by the unexpected two-pelt bonus, he airlocked the meat. Wookiee tasted oily and foul."
- 3 To firewall, to maintain an ethical wall. figuratively, transitive
"[…]cosmetics manufacturing enterprises do not want to have wholesalers standing in the middle to mark up prices of their products, and this has in fact affected the competitiveness of the manufacturers and airlocked the manufacturers from consumer dynamics."
Synonyms
All synonyms air lock
Example
"Throw our prisoner out the airlock."
Common questions
What is a synonym for "airlock"?
Common synonyms include: air lock.
How do you use "airlock" in a sentence?
Throw our prisoner out the airlock.
Etymology
From air + lock.