Synonyms of marrow in English:

marrow


See US English definition of marrow

See UK English definition of marrow

See Spanish definition of médula

noun

1‘the marrow of his statement’

SYNONYMS
essence, core, nucleus, pith, kernel, heart, centre, soul, spirit, quintessence, gist, substance, sum and substance, meat, nub, stuff
informal nitty-gritty, nuts and bolts