user11541: Can anyone please explain what is Dhamma in few paragraphs if possible?
A similar question was asked by Rahula in Samyukta Nikaya but what I have is English translation of the conversation which leaves me with doubts. Also I want to establish meaning of Dhamma before asking few more questions based on it.

user8157: In the Rahula Samyutta, the word 'Dhamma' refers the teachings of 'ultimate or higher truth' (lokuttara dhamma), which lead to developing the Noble Eightfold Path & enlightenment. As stated:

Venerable sir, it would be good if the Blessed One would teach me the Dhamma in brief, so that, having heard the Dhamma from the Blessed
  One, I might dwell alone, withdrawn, diligent, ardent and resolute.

In response, the Buddha teaches Rahula about impermanence, unsatisfactoriness & not-self, which is a teaching leading to Nibbana (rather than mere mundane teachings about kamma & 'rebirth', which are not 'Dhamma' with a capital 'D').

The Pali is: "bhagavā saṃkhittena dhammaṃ desetu"; if searched at:  https://suttacentral.net/, will probably find wherever this phrase is used, the outcome of the suttas found (see link) is Nibbana or enlightenment. This shows the word 'Dhamma' in the contexts means 'higher truth' rather than 'phenomena' or 'mind object'. 
This is the right or proper way to study Buddhism, namely, examining how a word is used in the context of the various suttas. 
Using dictionaries & ordinary scholar explanations is the wrong way to study Buddhism, causing lifelong confusion. Dictionaries & commentators is 2,400 years of the blind leading the blind. 

user5000: Dhamma is truth. Dhamma is wisdom. Dhamma is the path to liberation of suffering. Dhamma is the teaching about truth to attain wisdom.

user471: The term dhamma has multiple meanings in Buddhism. Dhamma is defined in the accesstoinsight.org glossary page as:

dhamma [Skt. dharma]:(1) Event; a phenomenon in and of itself; (2)
  mental quality; (3) doctrine, teaching; (4) nibbāna. Also, principles
  of behavior that human beings ought to follow so as to fit in with the
  right natural order of things; qualities of mind they should develop
  so as to realize the inherent quality of the mind in and of itself. By
  extension, "Dhamma" (usu. capitalized) is used also to denote any
  doctrine that teaches such things. Thus the Dhamma of the Buddha
  denotes both his teachings and the direct experience of nibbāna, the
  quality at which those teachings are aimed.

If you want to know more about Dhamma, the doctrine and teachings of the Buddha, see this page.
If you want to know more about dhamma (mental quality or mental object), the fourth foundation of mindfulness, see this page, this page and the Satipatthana Sutta.

11541: <p>Can anyone please explain what is Dhamma in few paragraphs if possible?</p>

<p>A similar question was asked by Rahula in Samyukta Nikaya but what I have is English translation of the conversation which leaves me with doubts. Also I want to establish meaning of Dhamma before asking few more questions based on it.</p>
 8157: <p>In the <a href="http://awake.kiev.ua/dhamma/tipitaka/2Sutta-Pitaka/3Samyutta-Nikaya/Samyutta2/17-Rahula-Samyutta/01-Pathamovaggo-e.html" rel="nofollow noreferrer">Rahula Samyutta</a>, the word 'Dhamma' refers the teachings of 'ultimate or higher truth' (<em>lokuttara dhamma</em>), which lead to developing the Noble Eightfold Path &amp; enlightenment. As stated:</p>

<blockquote>
  <p><em>Venerable sir, it would be good if the Blessed One would teach me the Dhamma in brief, so that, having heard the Dhamma from the Blessed
  One, I might <strong>dwell alone, withdrawn, diligent, ardent and resolute</strong>.</em></p>
</blockquote>

<p>In response, the Buddha teaches Rahula about impermanence, unsatisfactoriness &amp; not-self, which is a teaching leading to Nibbana (rather than mere mundane teachings about kamma &amp; 'rebirth', which are not 'Dhamma' with a capital 'D').</p>

<hr>

<p>The Pali is: "<em>bhagavā saṃkhittena dhammaṃ desetu</em>"; if searched at:  <a href="https://suttacentral.net/" rel="nofollow noreferrer">https://suttacentral.net/</a>, will probably find wherever this phrase is used, the outcome of the suttas found (see <a href="https://suttacentral.net/search?query=bhagav%C4%81+sa%E1%B9%83khittena+dhamma%E1%B9%83+desetu" rel="nofollow noreferrer">link</a>) is Nibbana or enlightenment. This shows the word 'Dhamma' in the contexts means 'higher truth' rather than 'phenomena' or 'mind object'. </p>

<p>This is the right or proper way to study Buddhism, namely, examining how a word is used in the context of the various suttas. </p>

<p>Using dictionaries &amp; ordinary scholar explanations is the wrong way to study Buddhism, causing lifelong confusion. Dictionaries &amp; commentators is 2,400 years of the blind leading the blind. </p>
 5000: <p>Dhamma is truth. Dhamma is wisdom. Dhamma is the path to liberation of suffering. Dhamma is the teaching about truth to attain wisdom.</p>
 471: <p>The term dhamma has multiple meanings in Buddhism. Dhamma is defined in the accesstoinsight.org <a href="http://www.accesstoinsight.org/glossary.html#d" rel="noreferrer">glossary page</a> as:</p>

<blockquote>
  <p>dhamma [Skt. dharma]:(1) Event; a phenomenon in and of itself; (2)
  mental quality; (3) doctrine, teaching; (4) nibbāna. Also, principles
  of behavior that human beings ought to follow so as to fit in with the
  right natural order of things; qualities of mind they should develop
  so as to realize the inherent quality of the mind in and of itself. By
  extension, "Dhamma" (usu. capitalized) is used also to denote any
  doctrine that teaches such things. Thus the Dhamma of the Buddha
  denotes both his teachings and the direct experience of nibbāna, the
  quality at which those teachings are aimed.</p>
</blockquote>

<p>If you want to know more about Dhamma, the doctrine and teachings of the Buddha, see <a href="http://www.accesstoinsight.org/ptf/dhamma/index.html" rel="noreferrer">this page</a>.</p>

<p>If you want to know more about dhamma (mental quality or mental object), the fourth foundation of mindfulness, see <a href="https://www.budsas.org/ebud/ebmed063.htm" rel="noreferrer">this page</a>, <a href="http://www.accesstoinsight.org/lib/authors/soma/wayof.html#mental" rel="noreferrer">this page</a> and the <a href="http://www.accesstoinsight.org/tipitaka/mn/mn.010.than.html#mental" rel="noreferrer">Satipatthana Sutta</a>.</p>
