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first and foremost

For starters; to begin. First and foremost, I want to thank all of you for being here tonight. I think we need to tackle that part of the problem first and foremost.
See also: and, first, foremost

right foot foremost

Indicative of positive or favorable start. The phrase derives from a Roman superstition that one should enter a room with one's right foot first, so as to ensure good luck. In an effort to put my right foot foremost this semester, I've already begun to research for my thesis.
See also: foot, foremost, right
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

first and foremost

Cliché first to be dealt with and most important. First and foremost, I think you should work harder on your biology. Have this in mind first and foremost: Keep smiling!
See also: and, first, foremost
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

first and foremost

Also, first of all. Most important, primarily; also, to begin with. For example, First and foremost, I want to thank our sponsors, or What we need, first and foremost, is a new secretary, or We have to deal, first of all, with the early history. The first term, dating from the late 1300s, is redundant, since first and foremost mean virtually the same thing. Both it and the variant, which dates from the mid-1500s, are used to give emphasis to the initial item in a list of several. Also see first off; first thing.
See also: and, first, foremost
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ˌfirst and ˈforemost

before everything else; most importantly: First and foremost, we must ensure that the children are safe.Don’t forget, he is first and foremost an actor, not a singer.
See also: and, first, foremost
Farlex Partner Idioms Dictionary © Farlex 2017

first and foremost

Most notable, most important. This tautological expression—first and foremost mean just about the same thing—has survived since the fifteenth century, when it was recorded in a work by William Caxton (1483). Deemed a cliché by the mid-nineteenth century, it is still popular with lecturers and others who like to enumerate the various points of their argument or elements of a list.
See also: and, first, foremost
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer
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References in classic literature ?
And the First and Foremost, beautifully arrayed, addressed the others in these words:
First and foremost, we need to urge our representatives in Congress to get the stalled H-1C legislation "dusted off" and moving forward.
Creative, one of the foremost producers of portable audio players, has released two new models of its "Nomad Jukebox Zen" player.
TrueArc announced recently that their integrated solution--SharePoint Portal Server and TrueArc's ForeMost Enterprise Version 3--has been tested and is now certified as being compliant with the new Department of Defense (DoD) 5015.2 standard (STD) for electronic recordkeeping systems (ERS).
"First and foremost there must be a recognition that young people under the age of 16 do have a sexuality that they need to express and engage in consensually with each other."
The AccuTrac resin-blending system--introduced by Foremost Machine Builders at Plastics USA in Chicago this month--is said to offer a low-cost solution to smaller batch-blending needs.
America's foremost rogue-genius architect had many passions, and right up there with his adoration of landscape, his lust for women, and his vaunted narcissism was his love of Japan.
But `being ourselves' requires a recognition that we are first and foremost spiritual, not just economic or material, beings.
IN THIS ERA OF AMERICAN SELF-congratulation--for winning the Cold War, establishing American pre-eminence as the world's foremost military and economic power, the "longest peacetime economic expansion" in American history, record levels of employment unaccompanied by high inflation, budget surpluses, reduced crime rates, decreased air and water pollution, the ability of an ever-increasing percentage of Americans to spend an ever-increasing percentage of their savings on an endless variety of non-essential consumer goods, and their pursuit of the bitch-goddess of wealth with abandon and without shame or apology--there is an underlying dirty little secret:
It goes on to describe Hourani's disillusionment with political work and his move to Oxford to become one of the world's foremost interpreters of modern Arab history, a personal and intellectual passage of enormous importance.
Moser is the foremost American master of wood engraving--a close and arduous process that uses the end grain of the wood as the printing surface -- and the first artist since Dor[acute{e}] in 1865 to illustrate the entire Christian Bible.
The Zurich Financial Services Group has revealed that the Insurance Exchanges, managed by its Farmers Group subsidiary, had agreed to acquire Foremost Corporation of America for USD812 million (Euro 848.78 million).
"But there was a gap in our joint product ranges," says Trevor Abraham, managing director of Foremost B SA Machinery.
Foremost among these rights rooted in human dignity, the bishops of Vatican II proclaimed, is the freedom to choose one's religion.
It is, in short, a work of incontestable brilliance that will establish its author as one of the foremost Renaissance scholars of her generation.