sī · tone 1
Meaning
to think, to long for
In names
思 (sī) is one of the 3,500 common characters in the 通用规范汉字表. Its basic meaning is “to think, to long for”. In names, it carries a 'scholarly / calm' feel. Thought and reflection; common in 思源, 思齐, 思远. It appears in names such as 思源, 安思. The tone is 1; practice the sound before you introduce the name.
Structure and etymology
A common character in Chinese given names.
Names that use this character
Naming notes
Thought and reflection; common in 思源, 思齐, 思远.
Tags: scholarly, calm. It reads as unisex in modern names.
Reference: Unihan database · Chinese Text Project. Meanings here are editorial summaries for naming, not full dictionary definitions.