A visible word beside a checkbox may look like a label without being connected to the control. In HTML, that relationship can be made explicit so the text helps people use the form.
Check the association
The MDN label reference explains how a label can be associated with a form control, including through a for attribute matching the control’s id. The association supports accessibility and can make clicking the label activate or focus its control.
On a practice page, compare a properly associated label with ordinary nearby text. Keep identifiers unique so the intended control is unambiguous.
Test the form as a task
Try reaching the control by keyboard and selecting it using the label. Then check whether the visible wording explains the choice clearly. Technical association cannot compensate for a label that says something vague like option without context.
If the form contains several related controls, examine the group’s explanation too. A working individual label is one part of a usable form, not a complete accessibility audit. The practical benefit is simple: the words people read and the control they operate should describe and identify the same choice.