What is the best word to say to someone you secretly love?
It depends on the context and the individual. Generally speaking, honesty is often the best policy when expressing feelings of love.
If you are ready to share your feelings, it might be appropriate to say "I love you" or "I have feelings for you" to the person you secretly love. However, it's also important to consider if the person feels the same way and if expressing your feelings will cause any harm or discomfort in the relationship.