missing hyphen in 'true-crime'

Hyphens are small but powerful: they tell readers when two or more words act together as a single modifier. Missing hyphens cause ambiguity (She watched a true crime documentary vs. She watched a true-crime documentary) and make writing look unpolished. Below are clear rules, quick checks, focused examples across work, school, and casual contexts, and simple rewrite templates you can use immediately.

Quick answer

Hyphenate when two or more words form a single adjective directly before a noun. Don't hyphenate when the phrase is a noun phrase or appears after the noun. If a hyphen feels awkward, recast the sentence so the modifier follows the noun.

Before a noun: hyphenate - a true-crime podcast, a five-year plan, a customer-facing deck.
After the noun or as a noun: usually no hyphen - I like true crime; the plan lasts five years.
If the modifier creates a chain of hyphens, rewrite: Production was delayed by two hours instead of a two-hour-delay-in-production.

Core explanation: what the hyphen does

A hyphen links words that together modify a noun. It signals that separate words function as a single unit and prevents misreading.

Pattern to watch for: modifier (multiword) + noun. When that modifier comes before the noun and needs to be read as one idea, hyphenate.

Modifier before noun = hyphen likely: long-term plan → long-term plan (before noun).
Modifier after noun = no hyphen: The plan is long term.
Noun phrase as head noun = usually no hyphen: I love true crime.

Wrong: She watched a true crime documentary last night.
Right: She watched a true-crime documentary last night.

Hyphenation rules you can actually use

Apply these practical rules to catch most errors quickly.

Compound adjectives before a noun: hyphenate - a well-known author, a five-year plan.
Number + unit modifiers: hyphenate - a two-page brief, a 10-hour shift.
Adverb + participle: hyphenate when the adverb is not -ly - a well-known fact (but a quickly moving vehicle).
Participial modifiers: hyphenate when they form a unit - a long-term solution, a broken-hearted character.

Exceptions: long-established noun+noun compounds often remain open (high school student, coffee shop). When style guides differ, choose clarity and stay consistent.

Work - Wrong: We scheduled a two hour meeting to discuss the launch.
Work - Right: We scheduled a two-hour meeting to discuss the launch.
School - Wrong: She cited a well known author in her essay.
School - Right: She cited a well-known author in her essay.

Spacing, dashes, and punctuation pitfalls

Know which mark to use and how to space it. A hyphen (-) joins words in a compound. An en dash (-) marks ranges or relationships (2018-2020). An em dash (-) offsets clauses. Don't add spaces around hyphens in compounds.

Hyphen: well-known, state-of-the-art. No spaces.
En dash: 10-12 pages, 2010-2015 (ranges or connections).
Em dash: We planned to go - then it rained. (Use spacing according to your style sheet.)

Work - Wrong: They ordered a state of the art machine for testing.
Work - Right: They ordered a state-of-the-art machine for testing.
Wrong: state - of - the - art machine
Right: state-of-the-art machine

Real usage and tone: when to follow strict hyphenation

Formal documents (reports, academic papers) favor precise hyphenation to remove ambiguity. Casual writing can be more forgiving, but inconsistent hyphenation still looks sloppy.

Some compounds solidify over time (email) while others remain hyphenated in adjective position (true-crime before a noun). Pick a style and apply it consistently across the piece.

Work/formal: hyphenate compound adjectives before nouns - a customer-facing report.
Casual: readers tolerate more open compounds, but hyphenate if ambiguity remains.
Style tip: if a modifier chain becomes clumsy, rewrite to avoid stacking hyphens.

Work - Wrong: We presented a customer facing report to investors.
Work - Right: We presented a customer-facing report to investors.
Casual - Wrong: They're in a long term relationship now.
Casual - Right: They're in a long-term relationship now.
Usage: I love true crime - no hyphen when used as a noun.

Try your own sentence

Test the whole sentence, not just the phrase. Context usually makes the right answer clearer. Paste a sentence into a checker or read it aloud: if two words are read together as one descriptor before a noun, bind them with a hyphen.

Examples: common missing-hyphen mistakes with fixes

Pairs you can copy. Each shows the usual missing-hyphen case and the corrected form.

Work - Wrong: We finalized the quarterly earnings report during a month long push.
Work - Right: We finalized the quarterly-earnings report during a month-long push.
Work - Wrong: The product team published a customer feedback driven roadmap.
Work - Right: The product team published a customer-feedback-driven roadmap.
Work - Wrong: Please send the two page summary before Friday.
Work - Right: Please send the two-page summary before Friday.
School - Wrong: She submitted a peer reviewed article to the journal.
School - Right: She submitted a peer-reviewed article to the journal.
School - Wrong: We ran a long term study on sleep patterns.
School - Right: We ran a long-term study on sleep patterns.
School - Wrong: The teacher assigned a research based project for the term.
School - Right: The teacher assigned a research-based project for the term.
Casual - Wrong: I picked up a part time job to save money.
Casual - Right: I picked up a part-time job to save money.
Casual - Wrong: That was a run of the mill joke.
Casual - Right: That was a run-of-the-mill joke.
Casual - Wrong: He joined a long distance relationship support group online.
Casual - Right: He joined a long-distance-relationship support group online.

Fix your sentence: three repeatable edits and rewrite templates

Follow a short process: spot the modifier, decide hyphen or rewrite, and apply a template.

Step 1: Spot multiword modifiers immediately before a noun (number+unit, adjective+noun, participle+noun).
Step 2: Hyphenate if you need single-unit reading. If the phrase becomes clunky, rewrite.
Step 3: Read aloud to confirm the intended meaning.

Rewrite:
Original: She watched a true crime documentary last night. - Fix: She watched a true-crime documentary last night.
Rewrite:
Original: After months of long term stress I needed a break. - Fix: After months of long-term stress, I needed a break.
Rewrite:
Original: He took a part time role to gain experience. - Fix: He took a part-time role to gain experience.
Rewrite:
Original: The team completed a customer facing assessment. - Fixes: The team completed a customer-facing assessment. / The team completed an assessment for customers.
Rewrite:
Original: We had a two hour delay in production. - Fixes: We had a two-hour delay in production. / Production was delayed by two hours.

Memory tricks to stop leaving out hyphens

Make hyphen checks a quick habit with simple rules of thumb.

Heuristic: "Before the noun? Bind the words." If the descriptor appears before the noun and acts together, hyphenate.
Numbers are wins: always hyphenate number + unit before a noun (two-page, five-year).
Keep a short cheat sheet of compounds you use often (true-crime, customer-facing, peer-reviewed).
Edit pass: search for known troublemakers (long term, part time, well known) and fix them in one sweep.

Usage: Tip: when you see "two" + noun (two page, two hour) check for a hyphen.

Similar mistakes and a quick grammar checklist

Related errors often appear alongside hyphen mistakes. Use this checklist before you publish.

Hyphen vs en dash vs em dash: use each mark for its purpose - do not substitute.
Closed vs hyphenated vs open: email (closed), state-of-the-art (hyphenated), high school (open). Pick a style and apply it consistently.
Spacing: no spaces around hyphens in compounds.
Checklist before publish: (1) find modifiers before nouns, (2) apply hyphen rules, (3) read aloud to test meaning, (4) standardize style across the document.

Usage: Wrong: high-school student questionnaire - better: student questionnaire or high school student questionnaire; avoid long chains of hyphens.
Usage: Wrong: Email - please read.
Right: Email - please read. (Use em dashes according to your style.)

FAQ

Do I need a hyphen in "true crime"?

Use a hyphen when "true crime" modifies a noun directly (a true-crime series). When it is the head noun ("I like true crime"), no hyphen is needed.

When should I hyphenate compound adjectives?

Hyphenate compound adjectives that come immediately before the noun they modify (a five-year forecast). Don't hyphenate when the phrase follows the noun (The forecast is five years).

Is "high school student" hyphenated?

Most guides leave "high school student" open. If you must use it as a modifier before another noun and it becomes awkward, rewrite instead of chaining hyphens.

What's the difference between a hyphen and an en dash?

Hyphen (-) joins words in compounds; en dash (-) indicates ranges or relationships (2010-2015). Use an en dash for ranges and hyphens to form compound modifiers.

How can I quickly fix hyphen mistakes in a long document?

Do an edit pass focused on modifiers: search for number + unit, long term, part time, well known; decide hyphen vs rewrite; and apply one style consistently. A targeted search-and-fix pass catches most errors fast.

Want a second pair of eyes?

If you're unsure about a hyphen in a sentence, paste it into a checker or ask a colleague for a quick review. A short hyphen pass before you publish-or a simple rewrite to avoid ambiguous modifiers-cleans up many common errors and improves clarity.