• WordNet 3.6
    • v underscore draw a line or lines underneath to call attention to
    • v underscore give extra weight to (a communication) "Her gesture emphasized her words"
    • n underscore a line drawn underneath (especially under written matter)
    • ***
Webster's Revised Unabridged Dictionary
    • v. t Underscore To draw a mark or line under; to underline.
    • ***
Century Dictionary and Cyclopedia
    • n underscore A line drawn beneath a written or printed word or passage, as for emphasis.
    • underscore To draw a mark or line under; underline, as for emphasis.
    • ***
Chambers's Twentieth Century Dictionary
    • v.t Underscore un-dėr-skōr′ to draw a score or line under, as for emphasis.
    • ***


In literature:

Nothing else, just this one sheet, with one long passage underscored.
"The Lady of the Basement Flat" by Mrs. George de Horne Vaizey
She was very well, with the very underscored, and two engagements for every evening.
"The Girls at Mount Morris" by Amanda Minnie Douglas
The words "looked for" were underscored in his letter, but no special explanation of the underscoring was given.
"Cousin Henry" by Anthony Trollope
But now, in the light of these underscored lines, the worn hands no longer looked pathetic.
"Mary Ware's Promised Land" by Annie Fellows Johnston
The "must" was underscored.
"Nan Sherwood at Palm Beach" by Annie Roe Carr
The "now" was heavily underscored, and the son had no difficulty in understanding his meaning.
"Little Bobtail" by Oliver Optic
The first question asked by one of the broad-shouldered savages underscored that conclusion.
"Impact" by Irving E. Cox
In a sentence, underscored by the line of blood-red fezzes.
"The Pools of Silence" by H. de Vere Stacpoole
Underscore the element that needs correcting, and put the abbreviation in the margin.
"English: Composition and Literature" by W. F. (William Franklin) Webster
Don't underscore your words, unless they express something very important.
"Social Life" by Maud C. Cooke
Beneath the last line of the message a few words had been scrawled with a blunt, blue crayon and then deeply underscored for emphasis.
"The Monk of Hambleton" by Armstrong Livingston
Underscore the names with wave lines so that they shall be printed in display type.
"News Writing" by M. Lyle Spencer
Underscoring is in bad taste.
"The German Classics of the Nineteenth and Twentieth Centuries" by Various
Perfection (with a capital P and violently underscored) was his design.
"The Works of Robert Louis Stevenson - Swanston Edition Vol. 16 (of 25)" by Robert Louis Stevenson
All that is necessary is to underscore lightly on the title page the first letter of words which must be used.
"Library Bookbinding" by Arthur Low Bailey
In long, underscoring lines of brutally strong trenches and transverses, went still more of the record.
"The Code of the Mountains" by Charles Neville Buck
Before Judge Chase started for Virginia, Luther Martin had given him a copy of Callender's pamphlet, with the offensive passages underscored.
"The Life of John Marshall Volume 3 of 4" by Albert J. Beveridge
It was marked heavily with many marginal notes and underscored passages, that he examined with a great deal of curiosity.
"In League with Israel" by Annie F. Johnston
Underscore the conjunctions in the following sentences.
"Plain English" by Marian Wharton
Two exclamation marks follow it, and it is heavily underscored three times.
"The Drunkard" by Cyril Arthur Edward Ranger Gull

In news:

Study underscores hunger problems facing storm-torn Haiti.
Libya, Cairo protests underscore cross-cultural ignorance .
WASHINGTON — President Barack Obama rejected a GOP offer for avoiding the so-called fiscal cliff yesterday, and he underscored his refusal to accept any deal that does not increase income-tax rates for top earners.
The failure of the Cybersecurity Act of 2012 underscored the issue.
Prime Minister's Departure Underscores Japan's Search for Leadership.
A zoom-able Google map underscores the Israeli military's concern about Iranian -made Fajr-5 rockets.
The Queens track tragedy that killed a 29-year-old man who sought to help his 18-year-old companion underscores a key subway lesson: Never hop on the tracks.
Interviews with Barofsky, Spitzer, and Krugman underscore the network's capture.
The final monthly jobs report before the election is expected to underscore that the current pace of economic growth is not strong enough to move the needle on the jobs situation.
The move is underscoring a divide in the Republican Party between tea party-supported conservatives and the House GOP leadership .
There's no reason to believe that the militias (which are separate from February 17) withdrew before the election, but the incident underscores concerns over the militias ' seriousness about its mission.
Films With Green Theme Underscore College's Mission .
Hurricane and Nor'easter Underscore Tree Hazards (Photo Credit: Matthew Fiasconaro/ABC News).
Republican's secrecy about how he handles his wealth underscores elitist image.
Vendor's new product underscores the firm's Buddy Media-like rise By Christopher Heine.

In science:

This moved his result to ΣπN = 93 MeV, consistent with the previous VPI/GWU result of ΣπN = 90 MeV, and underscoring the sensitivity of these analyses to the partial wave input.
Goldstone boson-nucleon dynamics: Working group summary and outlook
This underscores the point that in order to get at physics beyond the SM, we must understand the physics of the top quark in detail.
Top Quark Physics: Summary
This study underscores the importance of this source of uncertainties, the understanding of which is crucial for a reliable luminosity determination and accurate theoretical predictions.
Summary: Working Group on QCD and Strong Interactions
The range of these models underscores the importance of a global approach to polarized parton distributions.
Summary: Working Group on QCD and Strong Interactions
This also underscores the need to understand the structure of a virtual photon, if one wants to develop clean diagnostics to study the proton dynamics at low-x.
Photon 2003: a theorist's summary and outlook
These results further support the ΛCDM model for structure formation in the Universe, and underscore the need to understand galaxies in the framework of this theory.
Dark Matter in Galaxies: Observational overview
The setup currently under construction in our group even underscores the requirements of high resolution imaging.
Testing and design of a lens system for atom trapping and fluorescence detection
Fukugita and Yanagida underscores the point.
Lepton Photon Symposium 2005: Summary and Outlook
This underscores the need for experiments with high spatial resolution and multi-wavelength coverage, particularly at sub-mm wavelengths.
A study of the Sunyaev-Zel'dovich increment using archival SCUBA data
This study further underscores the need for a more detailed investigation in the upcoming critical point search programs at RHIC and SPS.
QCD Phase Diagram: Phase Transition, Critical Point and Fluctuations
This result underscores the importance of searching for undetected low-energy resonances, especially in cases when the predicted upper limit on C 2S is relatively large.
Charged-Particle Thermonuclear Reaction Rates: II. Tables and Graphs of Reaction Rates and Probability Density Functions
This underscores a simple fact: so much work has been done to increase the precision of the experimental inputs to |Vus | that, for the moment at least, further experimental progress is difficult.
Testing the Standard Model with Kaon Decays
This disagreement also underscores the importance of a good knowledge of the structure functions for these predictions.
Higgs Search : Present and Future
The vast range of QCD effects also underscores its importance because it will affect almost every measurement proposed in this summer study.
QCD: Challenges for the Future
In brief, these studies underscore the capabilities of LHC experiments and contain the first steps towards an effective measu rement strategy at the LHC [11, 21].
Summary of the Supersymmetry Working Group