No. ADD stands for Attention Deficit Disorder. It actually makes it incredibly hard to stay focused.
You can add the color blue to make purple more blue.
Orthodox Jews are strictly observant. Hassidic Jews are even more strict.
you should add more of the solute to the solution to make it more concentrated and more of the solvent to the solution to make it diluted.
She was an observant poet.
Add more white to your color. Add more red to your pink.
Observant is an adjective.
An add-on is an something you add to another program to make it better or more functional for the users benefit.
You add more solvent.
somehow add more fuel
You can see things (to be "observant") more clearly ("keenly") than most people and your opinion should be valued but not necessarily accepted.
Yes. Torah-observant Jews will make sure that the ingredients are kosher.
Add romance