Is it reliable vs Secure

When to use each in English, with meaning, register, and examples.

Is it reliable

Top 2,000 (common)

Secure

Top 1,000 (very common)B2verb
Most common: Secure
 Is it reliableSecure
Pronunciation🇬🇧 //ɪz ɪt rɪˈlaɪəbl//🇺🇸 //ɪz ɪt rɪˈlaɪəbəl//🇬🇧 /["/sɪˈkjʊə(r)/","/sɪˈkjʊəz/","/sɪˈkjʊəd/","/sɪˈkjʊərɪŋ/"]/🇺🇸 /["/sɪˈkjʊr/","/sɪˈkjʊrz/","/sɪˈkjʊrd/","/sɪˈkjʊrɪŋ/"]/
MeaningIs it trustworthy and dependable?To make safe or protect something.
ExampleIs it reliable enough to use for my project?We need to secure the doors before we leave for the night.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
CEFR level-B2
Part of speechverb
Collocationsis it reliable, reliable source, reliable information, reliable data, reliable serviceeasily, safely, eventually, be able to, manage to, fail to, an attempt to secure something, an effort to secure something, be aimed at securing something, firmly, properly, tightly, to, with
Antonyms-danger, unsecure, risk
Common mistakesConfusing 'reliable' with 'rely' - 'reliable' describes something, while 'rely' implies dependence., Using 'reliable' without context - always specify what is being referred to., Omitting 'is' - often mistakenly phrased as 'It reliable?' instead of 'Is it reliable?'Confused with 'ensure' - 'ensure' means to make sure something happens., Using 'secured' as an adjective when it should be a verb., Misplacing the emphasis on the second syllable.
Usage notesUse this phrase to ask about the dependability of something. It is appropriate in both casual and formal contexts, like discussing products or information.Used to indicate making something safe, but can also mean to obtain or achieve something. More common in formal contexts when referring to safety and in neutral situations for obtaining.

See it in real clips

Is it reliable
Secure

Frequently asked questions: Is it reliable vs Secure

What's the difference between Is it reliable and Secure?

Is it reliable: Is it trustworthy and dependable? Secure: To make safe or protect something.

Which is more common: Is it reliable and Secure?

Secure is the most common in everyday English.

Can you show an example of each?

Is it reliable: Is it reliable enough to use for my project? Secure: We need to secure the doors before we leave for the night.

Can I use Is it reliable and Secure interchangeably?

Not always. Is it reliable and Secure 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.

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