Grass plant or Weed?

[Whappers]

Hi guys.

It's been an awful long time since I last posted. I hope everyone is doing great!

The good weather is upon us and I'm striving for a nice lawn like most of us!

I came across an awful lot of the following:

Is anyone able to tell me if this is a grass plant or a weed?

 

[Kaka]

Annual meadow grass.

 

[topgun06]

It is grass. But also a weed if you don't want it where you've found it.