I alone describe many things

I alone describe many things.
Add a letter and I become the perfect fit.
Add one more and I've hurt many.
Drop a letter to make me all natural.

• My solution fits great. I'm hoping I made it so nobody can figure out false ones. Aug 21, 2015 at 20:45
• With only four lines, it's a virtual guarantee that someone will find a false fit. Most of them aren't really "fits", though; they're "stretches". Aug 21, 2015 at 20:55
• My solution IS a fit! Aug 21, 2015 at 20:56
• drop a letter from the original word or the one you have formed? Aug 21, 2015 at 21:12
• Formed. Sorry if that wasn't clearp Aug 21, 2015 at 21:21

The word is:

I

I alone describe many things.

"I" describe many things on a daily basis.

Add a letter and I become the perfect fit.

It, It could be anything so it is fit.

Add one more and I've hurt many.

Fit, not being fit has hurt many.

Drop a letter to make me all natural.

It, again it could be anything so it is natural.

• Way to go! :D ${}$ Aug 22, 2015 at 14:28
• I got as far as the first two lines, but the last two don't fit that well :-( @warspy Aug 22, 2015 at 14:55
• @rand al'thor Well my solution wasn't as great as this one. It was "it", "fit", "fist", "fst".. Aug 22, 2015 at 15:27
• I'll probably make another, a better one, later. Aug 22, 2015 at 15:28

Congrats @user! Aw, I was thinking of the first word but didn't figure out how some of the lines would fit.

Thanks for the exercise @warspyking. I like how the previous line almost alluded to the next word.

Now that the actual answer is out, here is another stretch for fun.

I alone describe many things.

ink
One can write out the descriptions of many things with a pen or other ink-filled writing instrument.

Add a letter and I become the perfect fit.

Things that link fit well together.

Add one more and I've hurt many.

As a verb meaning “to shoot", to plink at someone is likely to hurt that person.

Drop a letter to make me all natural.

pink
A colour found in nature or the colour of a ruddy person in his all natural birthday suit.

• I lol'ed at pink. Technically pink isn't even a real color. It's an illusion. I wouldn't call it natural :D Aug 22, 2015 at 16:45

I alone describe many things.

It
You can indicate almost anything with "it".

Add a letter and I become the perfect fit.

Fit
I don't know how much more perfect "fit" you can get.

Add one more and I've hurt many.

Fiat
Cars are dangerous.

Drop a letter to make me all natural.

Fat
Mammals all have fat naturally.

Here's a couple more that are more of a stretch.

I alone describe many things.

Kin
Everyone is someone's relative.

Add a letter and I become the perfect fit.

Akin
When you're a good match, you might be akin to the perfect solution.

Add one more and I've hurt many.

It's dangerous to be askin too many questions.

Drop a letter to make me all natural.

Skin
It's pretty natural.

I alone describe many things.

Hard
Many things are difficult.

Add a letter and I become the perfect fit.

Shard
A shard of glass is like a puzzle piece for a broken window.

Add one more and I've hurt many.

Shared
Be careful about the gossip you share.

Drop a letter to make me all natural.

Shred
Animals naturally shred their food.

• Nope ${}{}{}{}$ Aug 21, 2015 at 21:08
• That's actually quite clever. I like the "cars are dangerous.". Aug 21, 2015 at 21:21
• This was actually a good answer. But wrong. Aug 21, 2015 at 21:36
• None of these are correct. Your first guess was close. Aug 21, 2015 at 23:13

The word is:

RAM

Alone I describe many things:

Ram could be a model of car or an animal or a battering device.

Add a letter and I become te perfect fit:

CRAM, adding a letter and getting a tight fit.

Add another and I have hurt many:

CRAMP, adding a letter and getting something that has probably hurt everyone at some point (but don't buy into that nonsense about eating+swimming).

Drop a letter and I become all natural:

CAMP, remove the R and get a nature-based activity.

• The other answer was closer, but I like this noneoftheless Aug 21, 2015 at 22:16