A dictionary is especially useful for?

Answer 1

It is most useful to help spelling.

It provides a list of words and often a wide range of examples as in how the different words are used.

A good dictionary provide us with information we need in order to spell and use correct grammar regarding each different word.

Most people would use a dictionary for spelling those long incomprehensibly unfathomable even some times questionable words of dubious origin that are often misused.

Answer 2

finding the meanings, pronunciations, and spellings of words. It is a valuable resource for improving vocabulary, language comprehension, and communication skills.