Fooling, Harming, or Treating Badly (On)

to have a secret romantic or sexual relationship with someone other than one's own partner

She discovered that her partner had cheated on her with a co-worker.

to continually annoy or irritate someone

The constant tapping of his pen during the meeting really grated on my nerves.

to harshly criticize someone for their actions

The politician was jumped on by the media for his controversial remarks.

to intentionally deceive someone by making them believe something that is not true

The salesman is leading on the customer by saying that the car is in good condition, when in reality it has a lot of problems.

to keep treating someone unfairly or making unfair remarks about them

It's not nice to pick on your younger brother just because he's smaller than you.

to disappoint someone by not fulfilling a commitment or promise

He said he'd join us for the hike, but he piked on at the last moment.

to take advantage of someone's feelings or weaknesses

The politician played on the fears of the public to garner support for his policies.

to hunt, capture, and eat other animals as a means of survival

Lions prey on zebras in the wild.

to suddenly confront, attack, or shout angrily at someone

She seemed calm, but she could round on you if you questioned her decisions.

to attack someone aggressively, either physically or verbally

The bullies set on the young student after school, causing him great distress.

to cause a machine, device, or system to start working or flowing, usually by pressing a button or turning a switch

Before using the printer, make sure to turn it on and check for paper.

to cause worry or unhappiness due to a problem or responsibility

The mounting debt weighed her on heavily, affecting her overall well-being.