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The meeting will begin at 9 AM sharp.
The meeting will start at 9 AM sharp.
to start or commence an action or process
She began her journey to Europe last summer.
She started her journey to Europe last summer.
The rain began to fall as we left the house.
The rain started to fall as we left the house.
Often used with 'to' or 'with' to specify the starting point.
Remember common collocations like 'begin with' and 'begin to' to sound more natural.
'Begin' can be used both transitively (begin a task) and intransitively (begin to rain).
From Middle English 'biginnen', from Old English 'beginnan', from Proto-Germanic 'biginnanan' (to begin). Related to Old Norse 'byrja' and Old High German 'beginnan'.
Can be used in both transitive and intransitive forms. Often followed by 'to' or 'with' to specify the starting point.