What's the difference between rune and runer?

Rune

Definition:

(n.) A letter, or character, belonging to the written language of the ancient Norsemen, or Scandinavians; in a wider sense, applied to the letters of the ancient nations of Northern Europe in general.
(n.) Old Norse poetry expressed in runes.

Example Sentences:

(1) Henrik Williams, a Swedish expert on runes from Uppsala University, hailed the discovery.
(2) These are brand-new films, and there has been no Oscar-style "campaign" to build a consensus and help us read the runes.
(3) Rune, who is divorced, generally gets two days off a week, when he travels to nearby Ibaraki prefecture to see his sons.
(4) Rune gave the Guardian a rare insight into working conditions inside the plant.
(5) "I've never thought working at the plant was dangerous," Rune tells the Guardian after a day's work, for which he receives 12,000 yen (£95).
(6) The next morning, at 5.45am, the bus is already waiting when Rune emerges from his hotel, where he shares a room with five other workers.
(7) History will record that the rune-master of 21st century Scotland was Professor Curtice.
(8) Like most in the Falklands community, Hunt had half-expected the invasion; he had read the diplomatic runes and observed the naval manoeuvres.
(9) They include Ariyoshi Rune, a tall, wiry 47-year-old truck driver whose slicked-back hair and sideburns are inspired by his idol, Joe Strummer.
(10) Which is what you can say about psychics, mediums, homeopathy and the casting of runes, but that makes it, like them, more exploitative and wicked, not less."
(11) A previous Premier League inquiry, signed off in 1997 by Robert Reid QC and the league's then chief executive, Rick Parry, had found that after Arsenal signed the Danish midfield international John Jensen, and the Norwegian full-back Pal Lydersen in 1991 and 1992, Arsenal's manager, George Graham, had been paid £425,000 in kickbacks by the players' Norwegian agent, Rune Hauge.
(12) As a result, it doesn’t want to be in the position of the Bank of Japan, which twice in the past 20 years misread the economic runes and raised rates, only to find that it had to cut them again shortly afterwards.
(13) But that actually, they were used to get to know the alphabet, or rune names," said Nordby.
(14) So far, what he calls his "Rosetta stone", which was found at Bergen wharf, is the only place in which it is possible to be sure what the jötunvillur code says, although he believes another rune stick may well have been inscribed with the name Thorstein, and another with the name Einar.
(15) There is whole range of things that can be done with the supervision of Wada.” Meanwhile the IAAF has announced that their five-person investigation team that will verify the reforms programme in the All-Russia Athletics Federation (Araf) will be headed by Rune Andersen, a Norwegian international anti-doping expert, and include the former 200m runner Frankie Fredericks.
(16) After drifting inside and using his chest to lay the ball off for Steve Morison, the winger immediately looked for the return pass that the Norwich forward promptly delivered, the ball sitting up invitingly for Bale to dispatch an emphatic volley inside Rune Almenning Jarstein's near post.
(17) It seems the Tories read the runes on this one and realised that increasingly the evidence and political tide were against them.
(18) Some rune verses are, apparently, thematically derived from Chinese Radical sequences.
(19) But Rune expects there will be little praise, at least in public, for the men who cleaned up the devastation the waves left in their wake.
(20) New Labour thought it had discovered a magic money-tree and gave up on regulation; journalists on the whole failed to read the runes or question the new macho expansionist, masters-of-the-universe culture; the public liked the easy credit and soaring house prices and was too lazy to examine what was happening in the City; and what naysayers and doom-mongers there were tended to be marginalised.