The word "thronger" is a noun that refers to a person who is a member of a large, crowded group or crowd. There are various synonyms for this term, including "crowder," "mob," "mass," "multitude," "crowd," "huddle," "swarm," and "herd." These words can be used interchangeably with "thronger" in different contexts, such as describing a bustling city street or a sold-out concert venue. Other related words that convey a sense of a large gathering or assembly include "gathering," "assembly," "congregation," "audience," "spectators," and "onlookers." Choosing the right synonym can help to convey a specific tone or atmosphere within a particular text or conversation.