Phono-semantic — one part hints at the meaning, another at the sound
Example phrases
母亲最喜欢和邻居坐在门口聊家常。Mǔqīn zuì xǐhuan hé línjū zuò zài ménkǒu liáo jiācháng.Mother most enjoys sitting at the doorway with neighbours and chatting about everyday life.
周末我喜欢做几个家常菜请朋友来吃。Zhōumò wǒ xǐhuan zuò jǐ gè jiāchángcài qǐng péngyou lái chī.At the weekend I like to cook a few home-style dishes and invite friends over.
她们见面不谈工作,只聊聊家常。Tāmen jiànmiàn bù tán gōngzuò, zhǐ liáoliao jiācháng.When they meet they don't talk about work, only about everyday things.