A more thorough explanation:

Definition:

• denier, n.1. (də-nyay) [French fr. Latin denarius] a coin used in ancient Rome, worth ten asses.
• denier, n.2. (di-ni-ər) [Law French] Hist. Denial; refusal, as in refusal to pay rent when demanded.

Examples:

• He found a denier in the dirt while digging in his backyard.
• The tenant's denier of rent led to their eviction from the apartment.

Explanation:

The first definition of denier refers to a coin used in ancient Rome, worth ten asses. The second definition refers to a legal term, meaning a refusal to pay rent when demanded. The examples illustrate both definitions. In the first example, the denier is used to describe a coin found in the dirt. In the second example, the denier is used to describe a tenant's refusal to pay rent, which led to their eviction from the apartment.