I can dig it vs I understand

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

I can dig it

Informal Top 5,000 (fairly common)

I understand

Top 1,000 (very common)

Most formal: I understand Most common: I understand

	I can dig it	I understand
Pronunciation	🇬🇧 //aɪ kæn dɪɡ ɪt// 🇺🇸 //aɪ kæn dɪɡ ɪt//	🇬🇧 //aɪ ˌʌndərˈstænd// 🇺🇸 //aɪ ˌʌndərˈstænd//
Meaning	I understand and appreciate it.	I know what you mean.
Example	When she talked about her passion for painting, I thought, 'I can dig it.'	After the explanation, I understand the topic much better now.
Register	Informal	Neutral
How common	Top 5,000 (fairly common)	Top 1,000 (very common)
Collocations	I can dig it, totally dig it, can you dig it, really dig it, I dig that	I understand you, I understand clearly, I understand fully, I understand the issue, I understand the problem
Common mistakes	Used in formal settings where more conventional phrases are expected., Misunderstood as a literal action, instead of an expression of agreement.	Confused with 'I don't understand'., Inappropriately used in negative contexts., Omitting 'I' and just saying 'understand'.
Usage notes	Used in casual conversations to express agreement or understanding. Often found in music or youth culture contexts.	Used to show comprehension. Appropriate in both casual and formal contexts. Avoid in very formal writing.

See it in real clips

Breaking Bad › S1 E2

I can... I can dig it.

I can dig it

I understand you've run through the agent training program.

House Of Cards › S1 E1

I understand, but you've got to be reasonable.

I understand you've run through the agent training program.

House Of Cards › S1 E1

I understand, but you've got to be reasonable.

I understand

Frequently asked questions: I can dig it vs I understand

What's the difference between I can dig it and I understand?

I can dig it: I understand and appreciate it. I understand: I know what you mean.

Which is more formal: I can dig it and I understand?

I understand is the most formal of these.

Which is more common: I can dig it and I understand?

I understand is the most common in everyday English.

Can you show an example of each?

I can dig it: When she talked about her passion for painting, I thought, 'I can dig it.' I understand: After the explanation, I understand the topic much better now.

Can I use I can dig it and I understand interchangeably?

Not always. I can dig it and I understand 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.