ideogram
/ˈɪdɪəgræm; `ɪdɪəˌɡræm/ (also ideograph / ˈɪdɪəgrɑ:f; uS -grf; `ɪdɪəˌɡræf/) n
1 symbol used in a writing system that represents the idea (rather than the sounds forming the name) of a thing, eg Chinese characters 表意文字（不表声）（如汉字）.
2 any sign or symbol for sth 表意的符号或标志
In this dictionary the ideogram is used to mean `taboo'. 在本词典中, 用符号表示避讳语.