What's the difference between porter and redcap?

Porter

Definition:

(n.) A man who has charge of a door or gate; a doorkeeper; one who waits at the door to receive messages.
(n.) A carrier; one who carries or conveys burdens, luggage, etc.; for hire.
(n.) A bar of iron or steel at the end of which a forging is made; esp., a long, large bar, to the end of which a heavy forging is attached, and by means of which the forging is lifted and handled in hammering and heating; -- called also porter bar.
(n.) A malt liquor, of a dark color and moderately bitter taste, possessing tonic and intoxicating qualities.

Example Sentences:

(1) We are in the middle of the third year of huge cuts in acute hospitals' budgets," said Porter.
(2) The hospital said it is seeking information from other porters who worked at Leeds general hospital when Savile was a volunteer.
(3) My dream is that one day, young kids in Nepal won’t have to risk working on the mountain as porters or guides, they will be able to get an education and build better lives for themselves,” Sherpa told AFP.
(4) Dr Mark Porter, the British Medical Association’s chair of council, said: “This leaked document makes clear that more seven-day services will require not only thousands of extra doctors, nurses and support staff but an additional investment in both the NHS and community care.
(5) Bountiful by Todd Porter and Diane Cu (Stewart, Tabori and Chang)
(6) Will Francis, director, Vandal London Facebook Twitter Pinterest Will has worked with a variety of global brands including Net-a-Porter, Samsung, Spotify, Microsoft, Warner Music and Nike Foundation to innovate in social media, something he’s been doing since his days as editor of MySpace in the mid-late noughties.
(7) Referring to “back of house” (BOH) staff and kitchen porters (KP) it read: “Morning, “Due to recent EHO contact and receiving two 1 star ratings along with an increase in food safety audit fails.
(8) His greatest passion on the trek up, apart from finding a 3G signal and playing rap music from a speaker on the back of his pack, was playing Tigers and Goats, a local version of chess, taking on all-comers – climbers, Sherpas, trekkers, random elderly porters passing through the lodges.
(9) These findings suggest several new hypotheses relating to the molecular mechanism of transport through uncoupling protein and suggest explanations for observed functional differences among porters belonging to the same gene family.
(10) You wrote I Will Always Love You for Porter Wagoner, even though he had sued you.
(11) I would work as a porter without payment Two of the smugglers were themselves Rohingya, including a religious leader, she said.
(12) Along the way he also reached the final of the US Open Cup, and in the MLS Cup dispatched the holders LA Galaxy in the conference semi-finals, before beating Porter’s Timbers in both the home and road legs of the Western final (his team had beaten Portland in the US Open Cup semis too).
(13) The key finding was that LDL receptors clustered in coated pits, structures that had been described by Roth and Porter 10 years earlier.
(14) Has Net-a-Porter found the holy grail of 21st-century fashion?
(15) The design and properties of a rigid, box-like device to be placed on the knife stage of a Porter-Blum MT-2 ultramicrotome are described.
(16) Valeri's was one of two places MLS's head honcho gets in the 23-man squad, with the game's coach filling the 10 spots not otherwise claimed by fan voting, so when Porter's choices were announced on Saturday, fans began an American tradition as old as All-Star games themselves: disagreeing with the choices.
(17) Luckily we have great collections, a great programme so we do our best … we are on a hamster wheel.” Blavatnik will join philanthropic names at the V&A such as Weston (the Weston Cast Court), Sackler (the Sackler Centre for Arts Education) and Porter (the Porter Gallery, which houses temporary displays).
(18) We studied 202 pregnant women who were porter of pregnancy intrahepatic cholestasis (CIE).
(19) Having failed to get into Rada, Wesker embarked on a series of menial jobs: bookseller's assistant, plumber's mate and, at the Bell hotel in Norwich, kitchen porter.
(20) A caravan comprising 300 yaks, 50 mules and 100 porters wound through the Himalayan valleys, carrying 900 boxes of food, all because 13 white men wanted to reach the summit.