- an entrance or a passage.
- Also called entry. Mining. a nearly horizontal passage leading into a mine.
- an approach or access.
- an almost horizontal shaft into a mine, for access or drainage
“entrance,” c.1600, from Latin aditus “approach, entrance, a going to or drawing near,” from past participle stem of adire “to approach,” from ad- “to” (see ad-) + ire “to go,” from PIE root *ei- “to go” (see ion).