 |
| |||||||||
initial3 past tense and past participle initialled, present participle initialling British English, past tense and past participle initialed, present participle initialing American English
[transitive]B to write your initials on a document to make it official or to show that you agree with something [↪ sign]: 
The two countries have initialled a new defence co-operation agreement.
The two countries have initialled a new defence co-operation agreement.