Wine generally contains 12% alcohol, frotified wines contain 14%-18% normally but can run as high as 24%. Non-alcoholic and De-alcoholized wines are essentially the same thing - and they both contain about 0.5% alcohol. Read the labels.
Verjuice is truly non-alcoholic, as is unsweetened red and white grape juice, and apple juice. When I sub for wine I tend to go with the color of juice that fits the color of wine called for in the recipe- with 1/2-1 teaspoon of vinegar per cup.
Vinegar - just a note here ... unless it's distilled (that will be stated on the label) it contains some alcohol, generally less than 0.5% but some Asian vinegars can contain up to about 0.8% - the alcohol content doesn't have to be listed on the label due to labeling regulations. I wasn't aware of this until a Muslim neighbor brought it to my attention. Lemon juice is a safe non-alcoholic acid source.
Another source of alcohol in the kitchen is in flavoring extracts - like, but not limited to, vanilla. Pure extracts can contain anywhere from 8.5%-35% alcohol. Immitation flavorings generally do not contain alcohol unless they are a mix of immitation flavorings and extracts- then you're looking at some alcohol content. You just have to read the labels to see what you are getting.
"It ain't what you don't know that gets you in trouble. It's what you know for sure that just ain't so." - Mark Twain