What Does "primarily" Mean?
- What it expresses: It is an adverb of extent or degree. It indicates that something is the most important, the most frequent, or the chief reason/component among several possibilities.
- What part of the sentence it typically modifies: It most commonly modifies adjectives, prepositional phrases, or the main verb of a clause. It can also modify an entire noun phrase to specify a primary category.
- Register: It is formal to neutral. While common in journalism and academic writing, it is often replaced by "mostly" or "mainly" in casual conversation.
How to Use It
- Typical sentence positions: Its most natural position is mid-position, specifically after the auxiliary verb or the verb "to be," and before the main verb or adjective. While it can be used in the initial position for emphasis, it is rarely found at the end of a sentence.
- What it modifies and how it changes the meaning: By using "primarily," a writer acknowledges that other factors exist but singles out one as the most significant. For example, "The project failed primarily because of funding" suggests there were other minor reasons, but money was the deal-breaker.
- Grammatical flexibility: It is highly flexible. It can be fronted (Initial position) to set the stage for a claim. It can be used with negation (e.g., "not primarily") to shift focus elsewhere. It is also used in questions to identify a main cause.
- What sounds unnatural or incorrect: Placing "primarily" at the very end of a long, complex sentence can feel clunky. Additionally, using it to describe a binary state (something that is either A or B with no middle ground) can be logically redundant.
Real-World Examples
These examples are sourced from primarily on Ludwig.guru.
"#EmergingUS will exist primarily on the web, but some of the work will eventually appear in the printed version of the paper." — theguardian.com
"For one thing, the camera traps definitively proved that the lesula was primarily – and oddly – a ground-dwelling monkey." — theguardian.com
"At least 82 people, primarily protesters, were killed in clashes in the capital, Kiev, last week." — theguardian.com
"That is primarily because the technology they are built on has to be rigorously tested and stand the test of time, and therefore does not change quite as rapidly as mobile devices." — theguardian.com
"He was no longer primarily a pianist but a symbol, a national focus of pride and hope." — theguardian.com
Examples sourced from https://ludwig.guru/s/primarily
Similar Phrases and Alternatives
| Phrase |
Context |
| mainly |
Neutral; the most common and versatile synonym for everyday use. |
| principally |
Very formal; often used in legal, technical, or highly academic contexts. |
| mostly |
Informal/Neutral; best suited for spoken English or casual correspondence. |
| chiefly |
Formal; slightly literary or old-fashioned compared to primarily. |
| largely |
Neutral; often used when discussing the scale or proportion of an effect. |
| predominantly |
Formal; specifically implies that one element has numerical or physical dominance. |
Common Mistakes
- Wrong Position: Placing it between a verb and its direct object (e.g., "He eats primarily vegetables" is better as "He primarily eats vegetables").
- Register Mismatch: Learners often confuse it with 'principally' or 'mainly' in terms of register, sometimes using it in overly casual contexts where 'mostly' would be more natural.
- Overuse: Using it when there is only one factor involved; "primarily" implies the existence of secondary factors.
Quick-Reference Summary
| Expression |
Function |
Register |
Typical Position |
| primarily |
Focuses on the chief cause or element |
Formal / Neutral |
Mid-position (before verbs/adjectives) |
FAQs
Where in a sentence should primarily appear?
The most natural placement for primarily is the mid-position, usually located after the verb "to be" or the first auxiliary verb. It can also be placed at the beginning of a sentence to emphasize the scope of the following statement.
What is the difference between primarily and mainly?
While both words function as adverbs of degree, primarily carries a more formal tone suitable for reports and journalism. In contrast, mainly is more common in spoken English and is considered the standard neutral choice for general contexts.
Can I use primarily in casual conversation?
Using primarily in very casual settings can sometimes sound stiff or overly academic to native speakers. Learners often confuse it with 'principally' or 'mainly' in terms of register, sometimes using it in overly casual contexts where mostly would be more natural.