Right Click Look Up Words for their Definition

The option to search for the definition of the word just by selecting then right-click to chose Look Up is very helpful; though I wanted to report a small problem.

If a word has a period (.) behind and you select it, it will search the word in dictionary.com to include the period. For example, if I want to search for a word that is the last in the sentence i.e. the word [questionable.] it will look for that word and the period.

This does not happen with words that have a comma (,) behind. If you Look Up for the word i.e. "later," including comma, it will look for the word "latter" without comma in dictionary.com. This problem does not happen with words have have colon, semicolon, or apostrophe, besides those that have period (.) in the end.

Thank you