固 gù HSK4 to become solid Origin Definitions Defs Strokes Stroke Words Sentences Sents Showing: admittedly All meanings 4 gù 4 solid 2admittedly 1certainly 1 1 sentence for 固 (gù — admittedly) 学外语固非易事，但很有趣。 xué wàiyǔ gù fēi yìshì, dàn hěn yǒuqù. Learning a foreign language is certainly no easy task, but it is very interesting. Source: Dong Chinese Dictionary