Hello there. I am doing a little project in which I have to use multiple wires in a single 5V port...and I dont know how to do it? Please help. 
Can we get a bit more information? What Arduino board? How many wires? Where do the wires go or come from? How much current does each wire need to carry?
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If you have an Arduino UNO Rev 3, there are two 5v pins on the female power header, and there are two ICSP ports each with male 5v pins; total of four 5v power header pins.
That would be a major part of the problem for a start. 
Anything else still needs a breadboard
So you always need a breadboard if you are going to plug anything other than a couple of LEDs into a UNO, unless you can solder with protoboard, or have a "shield" that connects everything for you.
That is the specific limitation of the UNO.
It's the limitation of all this stuff, a Nano, a ESP-whatever, you name it.
What point are you trying to make?
You need a breadboard every bit as much to experiment with a UNO, as with any other form of Arduino.
In case you were implying as it did not appear clear, that you can practically do things with a UNO without a breadboard. 
I already asked the guy if he has a blasted breadboard - so that he can have as many sodding 5V points as he likes!
Build yourself one of these:
https://create.arduino.cc/projecthub/madmark2150/perf-panel-paired-power-plug-piggyback-for-mega-2560-uno-67d604
Thank you all.. I used the breadboard method and it worked.
Sure gets crazy around here.
kuh-ray-zee
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