Sustain vs You can maintain loyalty

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

Sustain

Top 2,000 (common) C1 verb

You can maintain loyalty

Top 2,000 (common)

	Sustain	You can maintain loyalty
Pronunciation	🇬🇧 /["/səˈsteɪn/","/səˈsteɪnz/","/səˈsteɪnd/","/səˈsteɪnɪŋ/"]/ 🇺🇸 /["/səˈsteɪn/","/səˈsteɪnz/","/səˈsteɪnd/","/səˈsteɪnɪŋ/"]/	🇬🇧 //jʊ kæn meɪnˈteɪn ˈlɔɪəlti// 🇺🇸 //jʊ kæn meɪnˈteɪn ˈlɔɪəlti//
Meaning	To keep something going or maintain it.	To keep faithfulness or support.
Example	We must find ways to sustain our natural resources for the future.	In a successful partnership, you can maintain loyalty through trust and communication.
Register	Neutral	Neutral
How common	Top 2,000 (common)	Top 2,000 (common)
CEFR level	C1	-
Part of speech	verb
Collocations	no longer, barely, indefinitely, be able to, can, be unable to	maintain loyalty, maintain relationships, maintain support
Antonyms	neglect, abandon, cease	-
Common mistakes	'Sustain' is often confused with 'sustained' as a past form., Learners sometimes forget to add an object after 'sustain'., 'Sustain' is misused when referring to temporary situations, instead of ongoing support.	Confusing 'maintain' with 'sustain' in non-physical contexts., Using 'loyalties' instead of 'loyalty' when referring to a general sense.
Usage notes	Use 'sustain' in contexts about keeping something alive or supporting it over time. It can be formal when discussing topics like environmental issues or less formal in conversations about personal interests.	Used in contexts of relationships, brands, or commitments. Suitable for formal and informal discussions, but avoid slang.

See it in real clips

"And I might share with you some words which have sustained me

Sherlock › S1 E1

Impossible to sustain a smoking habit in London these days.

There's not a planet in our solar system that could sustain life...

"And I might share with you some words which have sustained me

Sherlock › S1 E1

Impossible to sustain a smoking habit in London these days.

Sustain

Whether or not you can maintain loyalty.

You can maintain loyalty

Frequently asked questions: Sustain vs You can maintain loyalty

What's the difference between Sustain and You can maintain loyalty?

Sustain: To keep something going or maintain it. You can maintain loyalty: To keep faithfulness or support.

Can you show an example of each?

Sustain: We must find ways to sustain our natural resources for the future. You can maintain loyalty: In a successful partnership, you can maintain loyalty through trust and communication.

Can I use Sustain and You can maintain loyalty interchangeably?

Not always. Sustain and You can maintain loyalty 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.