颔首: [书面语] nod 短语和例子颔首会意 nod one's comprehension; 颔首示意 give a nod as a signal; 颔首微笑 nod smilingly; 颔首之交 a nodding acquaintance
会意: 1.(会心) understanding; knowing2.[语言学] (六书之一) associative compounds, one of the six categories of chinese characters, which are formed by combining two or more elements, each with a meaning