Also vs I'll tell you what else

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

Also

Top 1,000 (very common) A1 adverb

I'll tell you what else

Informal Top 5,000 (fairly common)

Most formal: Also Most common: Also

	Also	I'll tell you what else
Pronunciation	🇬🇧 /["/ˈɔːlsəʊ/"]/ 🇺🇸 /["/ˈɔːlsəʊ/"]/	🇬🇧 //aɪl tɛl jʊ wɒt ɛls// 🇺🇸 //aɪl tɛl jʊ wʌt ɛls//
Meaning	in addition to something else	I will share more information.
Example	She's fluent in French and German. She also speaks a little Italian.	I'll tell you what else I found during my research.
Register	Neutral	Informal
How common	Top 1,000 (very common)	Top 5,000 (fairly common)
CEFR level	A1	-
Part of speech	adverb
Collocations	also known as, also includes, can also be	tell you what else happened, tell you what else to consider, tell you what else we need
Antonyms	otherwise, differently	-
Common mistakes	Confused with 'too' — both mean similar things but are used differently., 'Also' placed incorrectly in sentences — it generally goes before the main verb.	Used too formally in business contexts., Confused with similar phrases like 'Additionally' or 'Moreover'.
Usage notes	Use 'also' to add information. It is appropriate in both spoken and written English. Avoid using it at the beginning of sentences in very formal writing.	This phrase is often used in conversations to introduce an additional point or idea, making it suitable for casual settings. It may not be appropriate in formal written communication.

See it in real clips

Also some of the judges. They've all sent gifts.

Agatha Christies Poirot › S1 E1

also the pomading.

Sherlock › S1 E1

Guys, we're also looking for a mobile somewhere here, belonged to the victim.

Also some of the judges. They've all sent gifts.

Agatha Christies Poirot › S1 E1

also the pomading.

Also

Sherlock › S1 E1

I'll tell you what else...

I'll tell you what else

Frequently asked questions: Also vs I'll tell you what else

What's the difference between Also and I'll tell you what else?

Also: in addition to something else I'll tell you what else: I will share more information.

Which is more formal: Also and I'll tell you what else?

Also is the most formal of these.

Which is more common: Also and I'll tell you what else?

Also is the most common in everyday English.

Can you show an example of each?

Also: She's fluent in French and German. She also speaks a little Italian. I'll tell you what else: I'll tell you what else I found during my research.

Can I use Also and I'll tell you what else interchangeably?

Not always. Also and I'll tell you what else 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.