is used for 'music' and 'comfort, ease', with different pronunciations in Chinese reflected in the two different on'yomi, gaku 'music' and raku 'pleasure'. Kasha moji () Kasha (Mandarin: jiǎjiè) are rebuses, sometimes called "phonetic loans". The etymology of the characters follows one of the patterns above, but the present-day meaning is completely unrelated to this. A character was appropriated to represent a similar-sounding word. For example, in ancient Chinese was originally a pictograph for "wheat". Its syllable was homophonous with the verb meaning "to come", and the character is used for that verb as a result, without any embellishing "meaning" element attached. The character for wheat , originally meant "to come", being a keisei moji having 'foot' at the bottom for its meaning part and "wheat" at the top for sound. The two characters swapped meaning, so today the more common word has the simpler character. This borrowing of sounds has a very long history. Related symbols The iteration mark () is used to indicate that the preceding kanji is to be repeated, functioning similarly to a ditto mark in English. It is pronounced as though the kanji were written twice in a row, for example and . This mark also appears in personal and place names, as in the surname Sasaki (). This symbol is a simplified version of the kanji , a variant of . Another abbreviated symbol is , in appearance a small katakana "ke", but actually a simplified version of the kanji , a general counter. It is pronounced "ka" when used to indicate quantity (such as , rokkagetsu "six months") or "ga" if used as a genitive (as in 関ヶ原 sekigahara "Sekigahara"). The way how these symbols may be produced on a computer depends on the operating system. In macOS, typing will reveal the symbol as well as , and . To produce , type . Under Windows, typing will reveal some of these symbols, while in Google IME, may be used. Collation Kanji, whose thousands of symbols defy ordering by conventions such as those used for the Latin script, are often collated using the traditional Chinese radical-and-stroke sorting method. In this system, common components of characters are identified; these are called radicals. Characters are grouped by their primary radical, then ordered by number of pen strokes within radicals. For example, the kanji character , meaning "cherry", is sorted as a ten-stroke character under the