Before anything else; without delay. For example, Tom was supposed to call him first thing in the morning. [Late 1500s] Also see under first and foremost; first off.
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Words nearby first thing
Example sentences from the Web for first thing
Fluoride first entered an American water supply through a rather inelegant technocratic scheme.
In the first episode, an officer is shown video of himself shooting and killing a man.'Babylon' Review: The Dumb Lives of Trigger-Happy Cops|Melissa Leon|January 9, 2015|DAILY BEAST
But since those rosy scenarios were first floated, the California political scene has grown more crowded.
There is no such thing as speech so hateful or offensive it somehow “justifies” or “legitimizes” the use of violence.
Eric Garcetti succeeded Villaraigosa and has received high marks in his first year and a half on the job.
This is the first and principal point at which we can stanch the wastage of teaching energy that now goes on.
He was converted and baptized, and was the first Hebrew instructor at Harvard college.The Every Day Book of History and Chronology|Joel Munsell
"There's just one thing I'd like to ask, if you don't mind," said Cynthia, coming suddenly out of a brown study.The Boarded-Up House|Augusta Huiell Seaman
And I have not had the first morsel of food prepared from this grain offered me since I reached the shores of Europe.Glances at Europe|Horace Greeley
That it is a reasonable and proper thing to ask our statesmen and politicians: what is going to happen to the world?