hyphen (-): also sometimes called "dash", although strictly speaking, "dash" refers to different symbols (see usage [3] below).

hyphen (-) [1]: a symbol used to separate morphemes in a word. For example, the word "incredible" can be written according to this convention as "in-cred-ible". [Spanish: guión [1]]

hyphen (-) [2]: a symbol used to indicate affixes, especially in contrast to roots and stems. In this use, the hyphen is placed at the end of prefixes and the beginning of suffixes; in other words, pointing toward the root or stem. For example, "-ible" means "the suffix ible", the hyphen indicates that one must place a stem (such as "cred") in front of "ible" to form a complete word (such as "credible"). Similarly, "in-" means "the prefix in", and one must follow it with a stem (such as "credible") to form a complete word (such as "incredible". [Spanish: guión [2]]

hyphen (-) [3]: For typographical reasons, a hyphen is often used as a substitute for certain other similar symbols, such as the minus sign (menos) and the en dash (–), while double hyphens (--) are used in place of the em dash (—). [Spanish: guión [3]]