No matter how good the justification skill is, text in very narrow columns is extremely hard to justify. The previous example showed it pitiless. We will tell LaTeX how a word could be divided:
We've told LaTeX that the word acronym may have a division point between acro and nym. That means a hyphen might be put after acro at the end of the line and nym goes to the following line.
\hyphenation command tells LaTeX where the division points of a word may be. ...