Which word will come at the first position if all of them are arranged alphabetically as in a dictionary?

Language 

The word that will come at the first position if all of them are arranged alphabetically as in a dictionary is Language.

The letters in alphabetical order are: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z.

The words in the question are:

• Language
• Leprosy
• Lesson
• Lessen