EN: Use commas with 'or' to give an explanation or simpler definition of a difficult word.
Botany, or the study of plants, is very interesting.
EN: The Rubik's Cube was invented in Hungary in 1974 by Ernő Rubik. While it became a worldwide phenomenon, mass production moved to other countries (especially China) for decades. Bringing production back to Hungary is a symbolic and proud homecoming for the country.
EN: Use 'and' to connect two complete sentences into one compound sentence. Both parts have their own subject and verb.
He lives in Canada, and his sister works in Japan.
EN: The Rubik's Cube was invented in 1974 by Ernő Rubik, an architecture professor in Budapest, Hungary. It originally began as a teaching tool to help students understand 3D geometry before becoming one of the best-selling toys in world history.
EN: To state someone's age, use the pattern: [Subject] + [be verb] + [number] + 'years old'.
My grandmother is 75 years old.
EN: Ernő Rubik was a Hungarian architect and professor of architecture when he created the 3D puzzle in 1974 to help students understand spatial relationships.
EN: In the Simple Present tense, when the subject is 'he', 'she', or 'it', we add '-s' or '-es' to the base verb (e.g., 'opens'). In news headlines and summaries, the present tense is often used to describe recent events.
She opens a small bookstore in her hometown.
EN: Jászberény is a historic town in central Hungary. The structure 'the town/city of [Name]' is a standard way in English to introduce lesser-known geographic places clearly to international readers.
EN: When a subject performs two actions, you can join the two verbs with 'and' without repeating the subject (Subject + Verb 1 + ... + and + Verb 2).
The students read the book and discuss it.
EN: Modern Rubik's Cube manufacturing heavily relies on automated robotic assembly to ensure precise tension, alignment, and speed, which are essential for quality and speedcubing standards.
EN: Use 'up to' before a number to mean the maximum limit or amount possible.
This bus can carry up to 50 people.
EN: In news articles, 'cubes' is commonly used as a short form for 'Rubik's Cubes' once the context is established, avoiding repetitive phrasing.
EN: Use the past simple tense (made, was) to describe actions or states that were completed in the past at a specific time (such as 'in 1974' or 'then').
She joined the company in 2020, and she was a student then.
EN: Ernő Rubik originally created the puzzle as a teaching tool to help his architecture and design students understand three-dimensional geometry and movement, rather than as a commercial toy.
EN: Use the pattern 'use [something] for [a purpose]' to describe utilizing tools, materials, or objects to achieve a specific goal.
She used red paper for the art project.
EN: Ernő Rubik originally created the prototype in 1974 out of 27 wooden cubes held together by rubber bands and glue. He didn't intend to make a puzzle at first; he wanted a 3D structural model to help his architecture students understand spatial relationships.
EN: Use 'start + to + verb' (or 'start + verb-ing') to show that an action begins. In the past tense, 'start' becomes 'started'.
In 2010, she started to learn English.
EN: When Ernő Rubik first invented the puzzle in Hungary, it was originally called the 'Bűvös Kocka' (literally 'Magic Cube'). It was only later, when released worldwide in 1980, that the toy was renamed the 'Rubik's Cube' after its inventor.
EN: Use the pattern 'become popular with + someone' to express that something is liked or accepted by a certain group of people.
This mobile game became popular with teenagers.
EN: Originally called the 'Magic Cube' in Hungary, the puzzle was renamed 'Rubik's Cube' internationally in 1980 and became a global pop-culture phenomenon in the 1980s.
EN: Use the pattern 'from [start time] to [end time]' to express a period of time between two specific points.
The store is open from Monday to Friday.
EN: The early 1980s saw the peak of the worldwide Rubik's Cube craze, quickly turning the Hungarian puzzle into one of the best-selling toys in history.
Key vocabulary words with IPA pronunciation, definitions, example sentences, and interactive quizzes.
Phrases with type tags, bilingual definitions, usage notes, and example sentences.
A programmable mechanical arm commonly used in industrial manufacturing to perform specific tasks.
As many as or as much as a specified maximum amount.
Liked, enjoyed, or supported by a specific group of people.
Everywhere in the world; globally.