do (someone) a world/lot of good
phrase
: to be very useful to or helpful for (someone)
The visit with her grandchildren did her a world/lot of good.
Cite this Entry
“Do (someone) a world/lot of good.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/do%20%28someone%29%20a%20world%2Flot%20of%20good. Accessed 7 Mar. 2026.
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Merriam-Webster unabridged
