out of sink (sync)

Writers often type or say "out of sink" because it sounds like the correct phrase, but that spelling changes the meaning and looks unproofed. The correct expression is "out of sync" - short for out of synchronization - used when things aren't coordinated or aligned.

Below are quick checks to spot the error, clear rules about spacing and hyphenation, many real-world examples (work, school, casual), step-by-step rewrites you can copy, and a few memory tricks to make the correct form stick.

Quick answer

Use "out of sync" when you mean 'not coordinated' or 'not aligned.' "Out of sink" is incorrect unless you literally mean something outside a sink or involving the plumbing fixture.

Use out of sync for audio, schedules, teams, devices, and any timing or alignment issue.
Hyphenate as out-of-sync only when the phrase directly modifies a noun (the out-of-sync file).
If you typed "sink" by habit, replace it with "sync" - short for synchronization.

What "sync" means and why "sink" is wrong

"Sync" abbreviates synchronization: matching timing, states, or actions across systems or people. "Sink" is a plumbing fixture or a verb meaning to submerge - a completely different sense.

Using "sink" where you mean "sync" forces readers to imagine a literal sink or an unrelated action. If the sentence concerns timing, alignment, or matching, use "sync."

sync = synchronization, alignment, timing
sink = plumbing fixture; verb meaning to go down or submerge

Wrong: The audio is out of sink and the dialog lags behind.
Right: The audio is out of sync and the dialog lags behind.

Grammar detail: parts of speech and common constructions

"Out of sync" usually appears as a prepositional phrase or predicative adjective: The backups are out of sync; the tracks are out of sync. When it modifies a noun before it, writers often hyphenate to avoid misreading: an out-of-sync recording.

Predicative: The files are out of sync.
Attributive (hyphenate): out-of-sync files

Wrong: We found several out of sink recordings in the archive.
Right: We found several out-of-sync recordings in the archive.

Spacing and hyphenation: when to use out of sync vs out-of-sync

Write "out of sync" (three words) in running text after a verb: The live stream is out of sync. Hyphenate as "out-of-sync" when the phrase comes before a noun and linking the words improves clarity: an out-of-sync video.

Avoid line splits that obscure the connection; never hyphenate to create "out-of-sink."

Before a noun: out-of-sync video (hyphenate)
Predicate or after the verb: the video is out of sync (no hyphen)

Usage: Predicate: The recording is out of sync with the slides.
Usage: Attributive: Please upload the out-of-sync clips separately for fixing.

Memory tricks to stop writing "sink" by mistake

Associate "sync" with synchronization: picture two clocks lining up. That mental image links sync to timing and coordination. Picture a kitchen sink to flag the mistake: if that image fits, you probably used the wrong word.

Visual trick: clocks in sync vs a kitchen sink - use the image that matches the meaning.
Keyboard habit: when you type "sink," pause and ask "plumbing or timing?" If timing, switch to "sync."

Rewrite:
Wrong: The audio keeps going out of sink. →
Correct: The audio keeps going out of sync.

Try your own sentence

Read the full sentence, not just the phrase. Context usually makes the correct choice obvious. Paste your sentence into a grammar checker for a quick confirm.

Real usage and tone: where "out of sync" fits

"Out of sync" is neutral and fits technical documentation, business emails, classroom feedback, and casual conversation. For a softer or less technical tone, choose "not in sync," "not aligned," or "out of step" depending on nuance.

Technical/work: Use for devices, data, or processes.
Casual: Use for plans, moods, timing (e.g., our rhythms felt out of sync).

Work: We noticed the CRM and accounting reports are out of sync; reconcile them by EOD.
Work: If your calendar and email notifications are out of sync, you might miss meetings.
Work: The video conference notes were out of sync with the recorded presentation.
School: The lecture slides were out of sync with the professor's narration.
School: Her lab timestamps are out of sync with the equipment logs; re-run the experiment.
School: Group members' draft versions are out of sync - use version control.
Casual: My playlist got out of sync after I switched phones and lost timestamps.
Casual: Our plans felt out of sync all night; we kept missing each other's cues.
Casual: The captions on the meme clip were out of sync and ruined the joke.

Examples: common wrong/right pairs (copy-and-paste ready)

Frequent mistakes and clear corrections. These cover audio/video, calendars, live streams, teams, and file synchronization.

Wrong: The subtitles are out of sink with the dialogue.
Right: The subtitles are out of sync with the dialogue.
Wrong: Our calendars are out of sink; let's reschedule.
Right: Our calendars are out of sync; let's reschedule.
Wrong: The team's strategy seems out of sink this season.
Right: The team's strategy seems out of sync this season.
Wrong: Your phone contact list is out of sink after the transfer.
Right: Your phone contact list is out of sync after the transfer.
Wrong: The live stream went out of sink briefly and viewers complained.
Right: The live stream went out of sync briefly and viewers complained.
Wrong: Audio out of sink.
Right: The audio is out of sync.

Fix your own sentence: quick editing checklist

Three fast checks you can do while proofreading: meaning, word, and hyphenation. If uncertain, search your document for "sink" and inspect each occurrence.

Meaning check: Is the sentence about timing/coordination? If yes, use "sync."
Word check: Replace "sink" with "sync" and re-read the sentence.
Hyphenation: If the phrase precedes a noun and could be misread, use "out-of-sync."

Rewrite:
Original: Audio out of sink during the presentation. → The audio is out of sync during the presentation.
Rewrite:
Original: Out of sink subtitles ruined the movie. → The out-of-sync subtitles ruined the movie.
Rewrite:
Original: Our schedules are out of sink-find a time. → Our schedules are out of sync - let's find a time.

Similar mistakes to watch for

Other near-misses can confuse meaning. Know these differences so you don't swap unrelated verbs or idioms.

sink in vs sync: "sink in" = to be understood; "sync" = to align.
in sync vs on the same page: Overlap but different nuance - timing vs shared understanding.
Alternatives like "out of phase" or "out of step" carry distinct tones and should be chosen on purpose.

Wrong: It finally synced in after the lecture.
Right: It finally sank in after the lecture.
Wrong: We were out of sink on the plan.
Right: We were out of sync on the plan. (Or: We weren't on the same page.)

FAQ

Is "out of sink" ever correct?

Only when you literally mean "outside of a sink" or something involving a sink. For coordination and timing, always use "out of sync."

Should I hyphenate "out of sync"?

No hyphen when it follows the verb (the audio is out of sync). Hyphenate as "out-of-sync" when the phrase directly modifies a following noun (the out-of-sync audio).

Why do people write "sink" instead of "sync"?

They sound identical in speech and "sink" is the more common dictionary word. It's a pronunciation-based typo; a quick context check usually fixes it.

How do I fix "out of sink" across many documents?

Run a find-and-replace for "out of sink" → "out of sync," then scan surrounding sentences for meaning and hyphenation (use "out-of-sync" before nouns as needed).

Can I say "not in sync" or "out of sync" - which is better?

Both work. "Not in sync" sounds slightly softer; "out of sync" is concise and common for technical timing issues.

Still unsure about a sentence?

Paste the sentence into a grammar checker to flag "sink" vs "sync" and suggest hyphenation for attributive uses. A brief automated scan catches most of these slips so you can focus on tone and clarity.