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.