That afternoon she had a stroke of luck and found the keys at the bottom of a drawer. be lucky, be in luck, (have) a stroke/bit of luck (NOT have luck): ‘We’re lucky the coach didn’t go without us.’ ‘You’re in luck, there are still a few tickets left.’ ‘I’m so pleased she got the job. It’s about time she had a bit of luck.’ Note that when luck is used with have, it is always modified: ‘I’ve had enough bad luck to last me a lifetime.’ ‘Some people have all the luck.’ ‘He hasn’t had much luck recently.’ 2
I’d just like to say goodbye and wish you a good luck.
I’d just like to say goodbye and wish you good luck. What a rotten luck! There he was again, sitting right beside me.
What rotten luck! There he was again, sitting right beside me. Luck is an uncountable noun: ‘She’s had a lot of bad luck recently.’ ‘Meeting the right partner is just a matter of luck.’ luggage 1
There was no room in the car for all our luggages.
There was no room in the car for all our luggage. He had brought a heavy luggage with him.
He had brought some heavy luggage with him. Luggage is an uncountable noun: ‘Do you have any more luggage?’ 2
I spent the morning packing my luggage.
I spent the morning packing (my bags/suitcases). pack or pack a bag/suitcase (NOT pack ... luggage): ‘I haven’t finished packing yet.’ ‘That’s not the way to pack a suitcase!’ lunch See BREAKFAST luxurious 1
You could stay at one of the big luxurious hotels, but the small hotels are far more
reasonable.
