adverb
DUBIOUS : Presently, nearly every machine used in the home is made of plastic.
GOOD : At present, nearly every machine used in the home is made of plastic.
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Presently is used to mean 'soon' in both British and American English: 'The car will arrive presently to take Her Majesty back to the palace.'
In American English presently is also used to mean 'now, at present, currently': 'The President is presently undergoing minor surgery.' The American usage is gradually becoming accepted outside the USA, but careful users of British English consider it to be non-standard.