perforations

'perforations'

[perforation.n.01] as in: a line of small holes for tearing at a particular place

'perforations'

[perforation.n.02] as in: a hole made in something

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Examples:
a perforation of the eardrum

'perforations'

[perforation.n.03] as in: the act of punching a hole (especially a row of holes as for ease of separation)