keep in (one’s) back pocket
to have something ready if needed, in reserve, prepared, and available for use whenever needed
The attorney had this witness in his back pocket; he waited until the right moment to call her to the stand.
I have a contingency plan in my back pocket if things go south.
the advertised retail price of an item
The sticker price for a car is never the price you pay.
For your loyalty to our business, I’ll knock 15% off the sticker price for you.
a category of people or things that are similar or fall between specified limits
This tax is reserved for those in a high-income bracket.
We’ve separated the students into brackets based on their reading levels.
a person who advocates a theory, proposal, or project
The flat earth theory still has plenty of proponents despite the science against it.
Although public opinion of the project was low at the start, it now has more proponents than critics.
taking a proportionally greater amount from those on lower incomes
This tax would be regressive and hurt low-income earners the most.
She’s fought any new tax that may be considered regressive.