How to write 宋

宋 [sòng] 1. 中国周代诸侯国名，在今河南省商丘市一带。 (En: Name of a feudal state during the Zhou Dynasty in present-day Shangqiu, Henan Province.) 2. 中国朝代名：南宋。宋代。宋词。 (En: Name of a Chinese dynasty: the Southern Song. Song dynasty. Song poetry.) 3. 响度单位，一宋约相当于人耳刚能听到的声音响度的一千倍，等于1000毫宋。 (En: A unit of loudness, where one song is approximately one thousand times the loudness that the human ear can just detect, equivalent to 1000 millison.) 4. 姓。 (En: A surname.) 5. 主观响度单位，1宋等于强度为听者听阈上40分贝的1000赫纯音的响度。 (En: A subjective unit of loudness, where 1 song equals the loudness of a pure tone at 1000 Hz with a strength of 40 decibels above the hearing threshold.) 6. 子姓。周武王灭商后，封商王纣子武庚于商旧都(今河南商丘)。成王时，武庚叛乱，被杀，又以其地与纣的庶兄微子启，号宋公，为宋国。战国初年曾迁都彭城(今徐州)。公元前286年为齐所灭。辖地在今河南东部及山东、江苏、安徽之间。 (En: A surname, linked to the power handover after the fall of the Shang dynasty, where Wu Geng, son of the last Shang king, was granted land that became the Song state, which was later conquered by Qi in 286 BC, located in present-day eastern Henan, Shandong, Jiangsu, and Anhui.)