The term 'subaltern' refers to groups or individuals that are socially, politically, and economically marginalized or oppressed within a particular society. This concept is crucial for understanding how power dynamics operate in colonial and post-colonial contexts, where the voices of these marginalized groups are often silenced or overlooked in dominant narratives. By analyzing the subaltern, one can gain insights into the complexities of identity, representation, and resistance in multicultural and post-colonial settings.