• WordNet 3.6
    • v underline draw a line or lines underneath to call attention to
    • v underline give extra weight to (a communication) "Her gesture emphasized her words"
    • n underline a line drawn underneath (especially under written matter)
    • ***
Webster's Revised Unabridged Dictionary
    • Underline Emphasize or call attention to; highlight; as, Long waits at the emergency room underline the need for a larger hospital. "."
    • Underline To influence secretly.
    • Underline To mark a line below, as words; to underscore.
    • ***
Century Dictionary and Cyclopedia
    • n underline The lower line of the body: used in describing the “points” of a horse.
    • underline To mark underneath or below with a line; underscore: as, to underline words in a letter.
    • underline To influence secretly.
    • n underline The advance announcement of the production of a play, placed under any theatrical advertisement of a regular performance.
    • ***
Chambers's Twentieth Century Dictionary
    • v.t Underline un-dėr-līn′ to draw a line under or below, as a word
    • n Underline an announcement of a theatrical performance to follow placed in an advertisement of the present one
    • ***


In literature:

Don't emphasize and underline for her.
"Play the Game!" by Ruth Comfort Mitchell
She naturally underscored the words "at once," forgetting for the moment that, in telegraphy, a word underlined counts as two words.
"Post Haste" by R.M. Ballantyne
Refusing to receive Senator Stone, he sent him a letter in which the cardinal points of his position were underlined.
"Woodrow Wilson and the World War" by Charles Seymour
If she was to go on (she underlined it) she must be left absolutely alone.
"The Flaw in the Crystal" by May Sinclair
Underline it with red pencil!
"A Nest of Spies" by Pierre Souvestre
Prohibition does not produce drunkenness, but it reveals it, underlines it.
"In Times Like These" by Nellie L. McClung
Byfield replaced it and underlined his disgust with a kick.
"The Works of Robert Louis Stevenson - Swanston Edition Vol. 20 (of 25)" by Robert Louis Stevenson
This term emphasizes the Feast-aspect, as "Altar" underlines the Sacrificial aspect, of the Sacrament.
"The Church: Her Books and Her Sacraments" by E. E. Holmes
The "immediately" was underlined three times.
"'Jena' or 'Sedan'?" by Franz Beyerlein
The last paragraph was underlined.
"On the right of the British line" by Gilbert Nobbs
Great aunt Mrs. Newton sent a letter in a sloping, shaky hand with nearly every other word underlined.
"Loyal to the School" by Angela Brazil
All this was very much underlined, and here and there was a little smudge as though she had dropped a tear.
"A Marriage at Sea" by W. Clark Russell
The pages she sent to Miss Lois, and the pages with which Miss Lois replied were many, eloquent, and underlined.
"Anne" by Constance Fenimore Woolson
It has not quite so long a keel or underline as the Toulouse and while deep in body it is not so baggy.
"Ducks and Geese" by Harry M. Lamon
Why she should always say "your" Cynic, however, and underline it, too, I cannot understand.
"Windyridge" by W. Riley
They would be quite alone (underlined), there should be no one else there to worry him.
"The Missioner" by E. Phillips Oppenheim
I underline this difference.
"Underground Man" by Gabriel Tarde
The ten dollars were underlined with three dashes.
"The Lost Manuscript" by Gustav Freytag
When she raised her eyes, they were underlined with red and two slow tears cut little pathways down the powder on her cheeks.
"Woman" by Magdeleine Marx
But, however, as the Magistrate underlined it with precision, the fact alone of recognizing Dantin constituted against Prades a new charge.
"The Crime of the Boulevard" by Jules Claretie

In poetry:

Grishkin is nice: her
Russian eye is underlined for emphasis;
Uncorseted, her friendly bust
Gives promise of pneumatic bliss.
"Whispers Of Immortality" by T S Eliot
Look deeper still. Dost underline
Most words in writing letters?
Or "Local" write on envelopes?
Say, ere I bind my fetters.
Let no false pity spare the blow, but in true mercy tell me so.
"Myrtilla's Third Degree" by Franklin Pierce Adams

In news:

Aigners' Holocaust memories underline value of eyewitness accounts.
Debacle May Underline Case For Volcker Rule.
Clashes Ease in Cairo, but Underline Nation's Fragile Condition.
UF&D to Underline Performance at Heimtextil.
UF&D to underline performance at Heimtexil.
Gowanus Canal Inquiry Underlines Severity of Pollution.
2 Kerry Votes on War and Peace Underline a Political Evolution.
Tributes to Nixon Underline Triumphs, Not the Downfall.
After the local election results underlined just how far the Government has fallen in recent months, this feels like a crossroads for politics in Britain.
GOP race underlines state divisions.
Underlined words are proposed new language.
Our support for them underlines the crucial role The Trib plays in our community: providing an independent and well-balanced perspective on the issues that concern all of us.
The Value of Greenfree Underlined By Prestigious Golf Course Rankings.
Morgan Deal Underlines The New Capital Flow.
Prisoners' labor underlines hypocrisy .

In science:

Let us underline that the active particles do not interact with each other and there is no “one-particle-per-site” rule.
The shape theorem for the frog model with random initial configuration
The non basic factors have been underlined).
Minimum aberration designs of resolution III
Assume that all vertices not in italics and underlined are arc vertices of G.
Obtaining hamilton cicuits in graphs and digraphs
More recently, Fridman et al. (2001) used the observed velocity information to reconstruct the velocity field of NGC 3631, and they underlined the important role of the m = 1 and m = 3 coefficients.
On the Spiral Structure of NGC 2915 and Dark Matter
This directly results from the point underlined just above, i.e. a rotating star enters the WR phase still with a large H– rich envelope.
Stellar evolution with rotation X: Wolf-Rayet star populations at solar metallicity
R L (underlined) you encounter, in reading from left to right.
Virasoro action on Schur function expansions, skew Young tableaux and random walks
First we underline the main difference between the GR and the proposed theory.
New Relativistic Equations of Motion and Their Comparison with the Equations from the General Relativity
Furthermore, the underlined Clifford algebras in the table can be named as “primitive maximal Clifford algebras”.
Hermitian versus holomorphic complex and quaternionic generalized supersymmetries of the M-theory. A classification
We underline that the comparison with the following experimental results show a qualitative analogy with this curve, because the k parameter plays an essential rule in the estimate of the efficiency.
Measurement of Coupling PDC photon sources with single-mode and multimode optical fibers
Furthermore, the effect of many-body interaction should be underlined here.
Calculation of Optical Conductivity of YbB$_{12}$ using Realistic Tight-Binding Model
This clearly underlines the role of the Boltzmann entropy (2) as the fundamental quantity and not the temperature for statistical mechanics. I am fully aware that this contradicts opposite statements given by [7, 8, 10].
Heat can flow from cold to hot in Microcanonical Thermodynamics of finite systems. The microscopic origin of condensation and phase separations
Thus we want to use this fact to construct a new parametrization for the G2 elements, which underlines the SU (3) subgroup.
A simple parametrization for G2
We underline that our approach to describing polarization states of the final meson is explicitly rotationally-invariant.
Production of spin-3 mesons in diffractive DIS
Notation t− is used to underline the existence of jumps in the process St : t− = limδ→0 (t − δ).
On hybrid simulation schemes for stochastic reaction dynamics
Because of the link between the move-to-front rule and the least-recently-used strategy (as underlined above), we clearly have that πk = IP(Sn > k).
Limiting search cost distribution for the move-to-front rule with random request probabilities