serve a purpose
Also, serve one's or the purpose. Be useful, meet the needs or requirements, satisfy, as in I don't know why they've added all this information but it probably serves a purpose, or It often serves his purpose to be vague, or We don't have a spading fork but this shovel should serve the purpose. This idiom was first recorded in 1513.
Words nearby serve a purpose
How to use serve a purpose in a sentence
Placed in drinking water, fluoride can serve people who otherwise have poor access to dental care.
ROME — What does it take for a Hollywood A-lister to get a private audience with Pope Francis?Pope Francis Has the Pleasure of Meeting Angelina Jolie for a Few Seconds|Barbie Latza Nadeau|January 8, 2015|DAILY BEAST
Real Housewives of New Jersey star Teresa Giudice turned herself in to serve a 15-month sentence for bankruptcy fraud.How a ‘Real Housewife’ Survives Prison: ‘I Don’t See [Teresa Giudice] Having a Cakewalk Here’|Michael Howard|January 6, 2015|DAILY BEAST
By setting no goals, the player must find their own purpose.Lost For Thousands of Strokes: 'Desert Golfing' Is 'Angry Birds' as Modern Art|Alec Kubas-Meyer|January 2, 2015|DAILY BEAST
Yes, Byrd—dead four-and-a-half years now—was a Kleagle in the Ku Klux Klan.Steve Scalise and the Right’s Ridiculous Racial Blame Game|Michael Tomasky|January 2, 2015|DAILY BEAST
Some were even re-arrested for the same nefarious purpose, and the daily papers published their names on each occasion.The Philippine Islands|John Foreman
I called out several times, as loud as I could raise my voice, but all to no purpose.Gulliver's Travels|Jonathan Swift
Now-a-days it is the bankrupt who flouts, and his too confiding creditors who are jeered and laughed at.Glances at Europe|Horace Greeley
These Rules (leaving out the Tenor) serves for five bells; and leaving out the fifth and Tenor, they serve for four bells.Tintinnalogia, or, the Art of Ringing|Richard Duckworth and Fabian Stedman
She had carried the baby over to Juana's and left her there, that she might be free to serve the Father's supper.Ramona|Helen Hunt Jackson