It has many meanings. It means to warn, to notice, to see, to look, to observe, to notice. It also means fixing, redoing, rebuilding, composing, recomposing, mending, restoring, renewing. In addition, it may mean recovering, toning, invigorating, restoring, strengthening, invigorating or remedying, compensating, indemnifying, amending, ingratiating, healing, compensating.