Definition of slog noun from the Oxford Advanced Learner's Dictionary



BrE BrE//slɒɡ//
; NAmE NAmE//slɑːɡ//
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[uncountable, countable, usually singular] a period of hard work or effort Writing the book took ten months of hard slog. It was a long slog to the top of the mountain. Word Originearly 19th cent.: of unknown origin; compare with the verb slug.
See the Oxford Advanced American Dictionary entry: slog