Nickname = A substitute name. Often to describe something
In my service time, I was very thin. My nickname was "Twigs".
Sweetheart = One's lover
On Christmas, sweethearts meet and go to dinner.
Heartfelt = Sincere
I wish you a heartfelt happy new year.
Out of order = Does not work correctly.
My phone has been out of order for some time and I must have it repaired.
Friction = Conflict due to difference of opinion
Sometimes there is friction with my staff due to their schedules.
Forecast = To predict beforehand
Every morning after I get up I check the weather forecast.
Adequate = enough
One cup of rice a day is adequate for me.
To make ends meet. = To take in as much money as you pay out.
If I don't work hard, I won't be able to make ends meet.
To know the ropes. = To understand something well. To know the method of operation.
I've been teaching English for 34 years. For sure I know the ropes of this business.
A world of hurt. = To be in pain or in some trouble.
From time to time I have to have water taken from my knees. At that time I'm in a world of hurt.