1. the action of making three copies of something
2. the state of being tripled or made threefold

Examples

• The triplication of the document ensured each department had a copy.
• The contract required triplication for legal purposes.
• She made a triplication of the important letter before mailing it.
• The triplication process took longer than expected.
• The office policy mandated triplication of all financial records.
• After triplication, the forms were distributed to three different offices.