Scottish Gaelic orthography has evolved over many centuries and is heavily etymologizing in its modern form. This means the orthography tends to preserve historical components rather than operating on the principles of a phonemic orthography where the graphemes correspond directly to phonemes. This allows the same written form in Scottish Gaelic to result in a multitude of pronunciations, depending on the spoken variant of Scottish Gaelic. For example, the word coimhead ('watching') may result in [ˈkʰõ.ət̪], [ˈkʰɔ̃jət̪], [ˈkʰɤi.ət̪], or [ˈkʰɛ̃.ət̪]. Conversely, it allows the sometimes highly divergent phonetic forms to be covered by a single written form, rather than requiring multiple written forms.