Cool MateParallel vs Side by side
When to use each in English, with meaning, register, and examples.
Parallel
Top 2,000 (common)B2adjective
Side by side
Top 2,000 (common)
| Parallel | Side by side | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/ˈpærəlel/"]/🇺🇸 /["/ˈpærəlel/"]/ | 🇬🇧 //saɪd baɪ saɪd//🇺🇸 //saɪd baɪ saɪd// |
| Meaning | Two lines or things that are the same distance apart and never meet. | Next to each other. |
| Example | parallel lines | The cars are parked side by side in the garage. |
| Register | Neutral | Neutral |
| How common | Top 2,000 (common) | Top 2,000 (common) |
| CEFR level | B2 | - |
| Part of speech | adjective | |
| Collocations | be, run, exactly, almost, nearly, to, with | stand side by side, sit side by side, place side by side, line up side by side, work side by side |
| Antonyms | perpendicular, divergent, intersecting | - |
| Common mistakes | 'Paralel' is a common misspelling., Confusing 'parallel' with 'similar' in less clear contexts., Using 'parallel' where 'perpendicular' is appropriate. | Confused with 'side-by-side' as a compound word., Using it in contexts where separate is implied. |
| Usage notes | Used in both mathematical and everyday contexts. In geometry, 'parallel' refers to lines; in metaphorical speech, it can describe similar situations. Avoid using in overly casual contexts. | Used in informal and formal contexts to describe things that are next to each other. Avoid when discussing unrelated subjects. |
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Frequently asked questions: Parallel vs Side by side
What's the difference between Parallel and Side by side?
Parallel: Two lines or things that are the same distance apart and never meet. Side by side: Next to each other.
Can you show an example of each?
Parallel: parallel lines Side by side: The cars are parked side by side in the garage.
Can I use Parallel and Side by side interchangeably?
Not always. Parallel and Side by side are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.