lack for

[egerol1]

Hey fellow members of WR

I was just wondering what this sentence means:

It was lack for something

what does the verb structure "to be lack for ..." mean?

[5jj]

what does the verb structure "to be lack for ..." mean?

Nothing. It is not acceptable English.

[Raymott]

Hey fellow members of WR

I was just wondering what this sentence means:

"It was lack for something."

what does the verb structure "to be lack for ..." mean?

You possibly mean "to be for/from the lack of".
"It was from lack of water that he died in the desert."

This Month's Special Tip: Please put your example in a full sentence that indicates how you're using the phrase.

[egerol1]

Sorry I was mistaken it was "lack on"

"Your argument is lacking on all scientific merit."
This is a sentence from the big bang theory season 2 episode 11

[birdeen's call]

I don't think this is correct and corpus search seems to confirm that. I would say "lacking in".

[mayita1usa]

I don't think this is correct and corpus search seems to confirm that. I would say "lacking in".

Yes, absolutely true - lacking in, not on!

"Lack" can also be used with "for" in these two constructions:
1 - The concert was cancelled for lack of ticket sales.
2 - John and Jane have good incomes; their children don't lack for anything.

[Raymott]

Sorry I was mistaken it was "lack on"

"Your argument is lacking on all scientific merit."
This is a sentence from the big bang theory season 2 episode 11

"Your argument is lacking [,] on scientific grounds."
This is a good sentence. But it doesn't use the collocation "lack on" (which probably doesn't exist). It simply follows "Your argument is lacking" with a prepositional phrase giving the reason - "on scientific grounds".
This was possibly the intention of the original, but with 'merit', I'd use "lacking in".