A more thorough explanation:

Definition: Allotment refers to a share or portion of something that was previously held in common. This can include property, shares in a corporation, or time assigned to speakers or sides in a deliberative assembly. In American Indian law, it also refers to the selection of specific land awarded to an individual allottee from a common holding.

• When the company went public, each employee was given an allotment of shares.
• The city council allotted 10 minutes to each speaker during the public comment period.
• Under the Dawes Act of 1887, Native American tribes were forced to divide their land into individual allotments for each tribal member.

The first example illustrates the definition of allotment as a share of something, in this case, shares in a corporation. The second example shows how allotment can refer to time assigned to speakers in a deliberative assembly. The third example demonstrates how allotment is used in American Indian law to refer to the selection of specific land awarded to an individual from a common holding.