1. To commit suicide. Primarily heard in UK. A: "Did you hear that his father topped himself over the weekend?" B: "Yeah, I can't believe it. Everyone is still in shock."

2. To outdo or outperform one's previous effort(s) or achievement(s). Primarily heard in US. Wow, you've really topped yourself with these cupcakes, Stephen!

1. To add to something until it is full, especially if it was already close to being full. A noun or pronoun can be used between "top" and "off." I'd like to top the car off with gas before we set out on the road tomorrow. Here, let me top off your glass with a bit more wine.

2. To finish or complete something by adding a final element or flourish to it. A noun or pronoun can be used between "top" and "off." The party was great! There was dinner, games, and dancing, and they topped the evening off with a karaoke competition. The cake is almost finished, let me just top it off with a few chocolate strawberries. We topped off our vacation in Greece with a trip to the Acropolis of Athens.

3. To add something unpleasant or difficult to an already troublesome situation. In this usage, a noun or pronoun is used between "top" and "off." I got a flat tire halfway through my bicycle ride, and to top that off, I had left my phone at home so I couldn't call anyone for help! The boss tore me a new one today, and to top it all off, my boyfriend said he was moving out.

1. To complete the topmost portion or story of a building that is under construction. A noun or pronoun can be used between "top" and "out." The construction company announced that they would be topping out the new courthouse this weekend. They said they would top the hotel out months ago, but it's still sitting there unfinished.

2. To fill some vessel, especially a cargo ship, to its limit. A noun or pronoun can be used between "top" and "out." The pirates topped their ship out with gold and jewels they had plundered. The furniture topped out the moving truck all on its own, so I don't know how we'll get all our boxes of stuff to the new house.

3. To reach an upper limit; to stop going any higher. Their market value topped out at $134 per share.

4. To cause something to cease going higher. A noun or pronoun can be used between "top" and "out." The federal reserve announced that it would be topping interest rates out at 8%. At the request of their boss, I topped out the company's bar tab at $500.

5. To retire from one's work, especially at the peak of one's success. Morgan decided to top out after selling her startup for nearly $12 million. I could see that the market bubble was set to burst anytime, so I topped out while the getting was good.

1. To fill some container or vessel with more of something. A noun or pronoun can be used between "top" and "up." Often used without directly stating the thing being filled, with the person or thing it belongs to being mentioned instead. Oh, you're glass is nearly empty, Tom. Let me top you up. Would you bring this bottle of wine to the table and top up everyone's glass, please? Make sure you top the car up with gas before you set out.

2. To add more money to some account. With our pay-as-you-go cell phone plans, you can top up over the phone or at various stores around the country. Don't forget to top up your account regularly, as payments are taken from it automatically.

3. To supplement one's income. A noun or pronoun can be used between "top" and "up." I do a bit of freelance work in the evenings to top up what I earn each month. You'll be on a lower starting wage, but you can top it up with commissions.