"Here is our plan."
Translation:Вот наш план.
"Наш" is "our" for masculine nouns.
"Наше" is "our" for neuter nouns.
How can I tell the difference between what is a masculine noun, a neuter noun, or a feminine noun?
There is a different meaning of the word
план in Russian. It means -
marijuana. Of course this is slang. So if You put on a table a matchbox and said "Here's our plan" someone can think about marijuana.
Because in this sentence you're presenting the plan, so you must use "вот", which translates to "here is".