I'll say

Proposed by a contributor, not yet supported by evidence.

Meaning · English

I agree or acknowledge

Nghĩa · Tiếng Việt

Tôi đồng ý hoặc công nhận

Machine-translated — suggest a fix

Where it’s used: Used Widespread English
Sources & notes

Listed in Wiktionary’s “English idioms” category (retrieved 2026-07-29); definition pending editorial review. Definition drafted by AI (@cf/meta/llama-3.3-70b-instruct-fp8-fast) and auto-approved by rule on 2026-07-30; pending editor spot-check.

Common questions

What does “I'll say” mean?

I agree or acknowledge

Is “I'll say” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.