The phrase "strook down" typically refers to an action of physically knocking something or someone down. Synonyms for the phrase include toppled, felled, tackled, destabilized, overpowered and brought down. These words convey a similar sense of force and physical impact as "strook down" and can be used to describe a variety of situations such as an athlete being tackled in a game, a tree being felled by a lumberjack or a person being overpowered in a physical altercation. Using appropriate synonyms can help to add depth and clarity to writing by providing a more precise description of the action being taken.