This is the 10160th most frequent French word.
ifit
"Ifit" is not a French word. It may be a misspelling or from another language.
In this sentence, 'si' implies a conditional situation, marking the dependency between the desire to succeed and the need for hard work.
Si tu veux réussir, il faut travailler dur.
If you want to succeed, you must work hard.
Here, 'si' is used as an interrogative conjunction, introducing an indirect question about whether she will come.
Je ne sais pas si elle viendra aujourd'hui.
I do not know if she will come today.
In this context, 'si' serves to introduce a subordinate clause, questioning the condition of the shop's status.