According to the dictionary, religion is, among other things, "... something one believes in and follows devotedly; a point or matter of ethics or conscience."
If you want to change the meaning of
religion, go ahead. But if you want to be honest about it, explain your definition.
If you are talking about the religions that are organized as religions, say it. Others will want to use the dictionary definition, since the dictionary definition is generally what is accepted without special meanings being given.

Why you need to resort to the double talk?
https://en.wikipedia.org/wiki/ReligionFYI,
"Religion is any cultural system of designated behaviors and practices, world views, texts, sanctified places, ethics, or organizations, that relate humanity to the supernatural or transcendental."
religion
[ri-lij-uh n]
noun
1. a set of beliefs concerning the cause, nature, and purpose of the universe, especially when considered as the creation of a superhuman agency or agencies, usually involving devotional and ritual observances, and often containing a moral code governing the conduct of human affairs.
2. a specific fundamental set of beliefs and practices generally agreed upon by a number of persons or sects:
the Christian religion; the Buddhist religion.
3. the body of persons adhering to a particular set of beliefs and practices:
a world council of religions.
4. the life or state of a monk, nun, etc.:
to enter religion.
5. the practice of religious beliefs; ritual observance of faith.
6. something one believes in and follows devotedly; a point or matter of ethics or conscience:
to make a religion of fighting prejudice.
7. religions, Archaic. religious rites:
painted priests performing religions deep into the night.
8. Archaic. strict faithfulness; devotion:
a religion to one's vow.

You religiotards have your own dictionary.com to redefine everything. How sad?
Try this
https://en.oxforddictionaries.com/definition/religionA partial from the Oxford
Living Dictionaries:
1.2 A pursuit or interest followed with great devotion.
consumerism is the new religion
More example sentences
The consequent pursuit of thinness had become a new religion, she said, and she showed a range of advertisements to support her claims.
It's the backdrop because football is considered a religion worldwide and the most viewed game.
We've been told time and again that cricket is a religion in India.
The pursuit of eating raw food has become a religion of the nuttier kind.
This brings up another point: hockey in the BCHL ceases to be a religion and becomes secondary to education.
It serves only one master - corporate greed - that is their religion and their power.
Online marketers realize that return on investment is the religion they need to follow.
In this city where rugby is a religion, there is the feeling that Moses has led them to the mountaintop.
This is a really good dictionary. Thanks for your help.

Even if you apply this colloquial use of the word, it will still not work with Atheism. Atheists do not do anything 'religiously'.
If you want to use word religion to mean any activity that is performed repeatedly with dedication, sure, even us posting on this forum can be called 'bitcontalk' religion.
Heck, bitcoin hobby can be called religion as well.
If you ask anyone on the street what is religion, most people would say it is believing in God/supernatural.
In your case, in this forum, one of the most religious things you do is to promote non-religion. You are fanatically religious about this, to the point, almost, of being a zealot.