enter is the most general of these and may imply either going in or forcing a way in.
entered the city in triumph
penetrate carries a strong implication of an impelling force or compelling power that achieves entrance.
the enemy penetrated the fortress
pierce means an entering or cutting through with a sharp pointed instrument.
pierced the boil with a lancet
probe implies penetration to investigate or explore something hidden from sight or knowledge.
probed the depths of the sea
Example Sentences
Verb Knock on the door before you enter the room. The medication will quickly enter the blood stream. The river enters the sea near here. Our son will be entering college next year. enter a child in kindergarten The new battleship is scheduled to enter service next spring. an actor who's just now entering his prime The strike has now entered its second week. We've entered a new phase in our relationship. The country is entering a period of prosperity. See More
Recent Examples on the Web
Verb
Guarantee mechanisms can incentivize them to enter the market or expand capacities. Awi Federgruen, STAT, 16 Sep. 2022 The coffin is set to enter the Palace of Westminster through New Palace Yard. Patrick Smith, NBC News, 14 Sep. 2022 Companies that enter joint ventures typically share costs and liabilities. Jennifer Williams-alvarez, WSJ, 14 Sep. 2022 But across that spectrum, as more people become interested in monitoring what goes on inside their bodies, the question of who gets a CGM, and who doesn’t, may become a model as other new medical technologies enter the market.AZCentral.com, 14 Sep. 2022 Starlink is also looking to enter the inflight WiFi market and signed deals with Hawaiian Airlines and private jet operator JSX to add Starlink antennas on their aircraft. Mihir Tripathy, Smithsonian Magazine, 14 Sep. 2022 Airport-style security checks are in place near the front of the line before people can enter Parliament.BostonGlobe.com, 14 Sep. 2022 The 12-member jury and 10 alternates were not present but were lining up outside the courtroom to enter.CBS News, 14 Sep. 2022 To enter, please fill out all of the fields in the form before noon on Tuesday, October 4. Esther Mobley, San Francisco Chronicle, 14 Sep. 2022 See More
Word History
Etymology
Verb
Middle English entren, from Anglo-French entrer, from Latin intrare, from intra within; akin to Latin inter between — more at inter-