a person who usually gets out of bed early/late in the morning

Even as a teenager, I was an early riser.

An early riser, she walks the dog at six o'clock most mornings.

The coffee shop opens at five o'clock to accommodate the early risers.

Don't expect to see Tom before ten o'clock most mornings - he's a late riser.

Most of the classes are scheduled before the word day starts so they tend not to suit the late riser.

Both of my brothers were late risers whereas I was a lark, up with the first light.

the vertical part of a step

a group of steps on which people sit or stand to see or be seen better

We stood on risers for the whole ceremony.

The kids hid out under the risers after the concert was done.

They sat on risers behind the main playing area.

The seats are on risers for better viewing.

A railing should be put at the end of each row since people will walk up and down the risers looking for their seats.

We need to set up the risers for the awards ceremony.

something such as a share price or currency whose value has gone up during a particular period

Old Mutual , the financial services group, was the biggest riser in the FTSE 100. 金融服务公司英国耆卫保险，是富时100指数中股价上涨最多的。