In dictionary entries, there are <u>abbreviations</u>, in the case of n. (noun), that function as indicators of the different <u>parts of speech</u> of the <u>English language</u> (verb tense, grammar) the words defined belong.
Other <u>abbreviations</u> are used to indicate different subjects such as the origin of words, <em>L.</em> (latin); or the use of a word in specific circumstances, <em>colloq.</em> (colloquial).
This is something we can't really answer, because we don't know your experience learning spelling words. There isn't one specific answer for this problem, it's determined by the person answering it.
