brain

HSK 5 | noun phrase | content recommendation driven by algorithms

HSK 4 | noun | one's mental or emotional stance toward something

Learn how to use 〜に際して (ni saishite) to express 'on the occasion of' or 'at the time of' for significant events and actions. Includes structure, nuance, examples, and comparisons.

HSK 2 | verb | to go to work, to start a work shift

HSK 4 | adverb/adjective | absolute or absolutely certain

HSK 4 | noun | classmate, schoolmate

HSK 1 | noun | doctor, physician

HSK 3 | adverb / conjunction | in addition, besides, furthermore; another, other

HSK 5 | verb | to make something firmer, stronger, or more secure

HSK 1 | adjective | hot (temperature or weather)

Mastering 之、乎、者、也 and the grammar of classical Chinese in modern scholarly and literary contexts.

HSK 4 | adjective | pessimistic; pessimism

HSK 5 | adjective/verb | conspicuously noticeable; to highlight or protrude

高 (kou/taka-i): tall. JLPT N5 kanji.

HSK 4 | adverb | indicating an estimate rather than an exact figure

HSK 1 | noun | school, educational institution

HSK 3 | noun | an obligation one is accountable for; a duty that must be fulfilled

HSK 1 | noun | restaurant, eatery

HSK 3 | noun / preposition | the space or position in the middle of something

花 (カ/はな): flower; blossom. JLPT N5 essential kanji.

Learn to describe where things are using 在 and position words like 上面, 里面, and 前面.

HSK 4 | noun | a written or digital record containing information

HSK 4 | noun/verb | change, transformation

HSK 5 | noun | infectious disease; communicable disease; contagious illness

Top 10 mistakes English speakers make in Esperanto — grammar errors, pronunciation issues, and common misconceptions.

HSK 1 | verb | to read text aloud or to study at an institution

HSK 4 | noun / verb | going through events that shape understanding

HSK 4 | noun / verb | a regular behavior or the state of being accustomed

We are given a set of points on an infinite 2D grid, representing planets in a "meta-universe." The goal is to repeatedly split the set of planets along empty rows or columns that completely separate the set into two non-empty subsets, each lying on one side of the row or column.

HSK 5 | noun | indicator; metric; target figure used to measure performance or status

HSK 5 | noun | the foundational base upon which something is built

Full 文言文 literacy and engagement with classical Chinese literature, poetry, and the 骈文 tradition.

HSK 5 | verb | to urge someone to do something through supervision or prompting

HSK 4 | adjective/adverb | done at the right time without delay

HSK 4 | conjunction | introducing an additional point beyond what was stated

HSK 6 | verb | to deduce logically; to perform or present artistically

HSK 4 | noun | the explanation for why something happened

HSK 5 | verb/noun | to report (news); a news report or coverage

HSK 4 | noun | the ability to accomplish something with minimal waste

長 (chou/naga-i): long. JLPT N5 kanji.

HSK 4 | verb/noun | to infer, to speculate; inference, speculation

〜が (ga): JLPT N5 grammar pattern. Usage, structure, examples, and comparison with は.

HSK 3 | verb | to consider, to think over, to take into account

Complete list of all 103 JLPT N5 kanji with stroke count, on-yomi, kun-yomi, meaning, and example words.

Exploring how classical Chinese grammar and vocabulary permeate formal Modern Chinese — 所 nominalization, 之 particle, and registers of elegance

HSK 4 | verb / noun | expressing official or personal acceptance and endorsement

Complete guide to on'yomi (Chinese-derived readings) and kun'yomi (native Japanese readings): when to use each, patterns, irregular readings, and examples.

HSK 3 | noun | dormitory, student housing, staff quarters

四 (shi/yot-tsu): four. JLPT N5 kanji.

HSK 4 | noun | a list of dishes available at a restaurant

HSK 5 | adjective / adverb | existing or occurring generally among all people or in most places

HSK 3 | verb / noun | to pay attention to, be careful about; attention

HSK 3 | noun | chopsticks, the traditional East Asian eating utensils

HSK 5 | noun | an unfair preconceived opinion not based on reason or experience

N1 grammar pattern 〜のみか: literary 'not only X but also Y,' escalating from X to the more surprising/larger Y. Formal and literary register.

HSK 4 | adjective | easy to see or notice; clearly apparent

HSK 3 | adverb | describes a recurring pattern observed from experience

朝 (chou/asa): morning. JLPT N5 kanji.

HSK 1 | adverb/noun | the day after today

N1 grammar: 〜いかんでは and 〜いかんによっては expressing 'depending on the nature/circumstances of X, Y may occur.' Formal register, often in legal or policy contexts.

JLPT N4 kanji 事 — readings, vocabulary, stroke order, mnemonic, and common confusion pairs.

Creating Sindarin personal names: masculine and feminine name elements, patronymics, epithets, and the naming traditions of Tolkien's Elves.

HSK 3 | noun | doctor, physician — spoken/Northern Chinese term; compare 医生

HSK 4 | noun / adjective | mistake; error; wrong; incorrect

HSK 4 | noun | opponent, rival, competitor

HSK 4 | noun | the background or context of a situation

HSK 4 | adverb | indicating something happened in the past but no longer continues

HSK 4 | adjective | fully adequate in amount or degree

HSK 1 | noun | table, desk

HSK 1 | adjective, adverb | slow, slowly

HSK 5 | conjunction | let alone; much less; not to mention; all the more so

HSK 3 | noun / adjective | difficulty, hardship; difficult, hard

HSK 3 | adverb | describes slow, incremental change over time

An analytical study of Esperanto's linguistic evolution, the Akademio's role, the Ido schism, native speakers, sociolinguistics, and corpus linguistics.

HSK 5 | verb / noun | to caution or alert; a cautionary sign or message

HSK 3 | verb/adjective | to use more of something than is needed

女 (jo/nyo/nyou/onna): woman. JLPT N5 kanji.

HSK 5 | verb | to confirm as true; to substantiate

HSK 4 | verb | to face; to confront; to deal with

HSK 6 | n | the intrinsic qualities, depth, or connotation of a person, concept, or work

HSK 6 | n | facts, examples, or reasoning used to support an argument

HSK 2 | verb/adjective | to get angry, to be angry

HSK 4 | adjective/noun | relating to a specific field of expertise

HSK 5 | adjective | advocating extreme or rapid change; radical

HSK 5 | adjective | reasonable, rational, sensible, justified

HSK 5 | verb | to examine and check something carefully for accuracy or compliance

駅 (eki/): station (train/bus). JLPT N5 kanji.

HSK 5 | noun | a subject or theme being talked about

HSK 1 | adjective | short (in length or duration)

HSK 5 | verb / noun | to comment or critique; a commentary or review

HSK 5 | noun | the rate at which one currency is exchanged for another

HSK 3 | noun | the atmosphere or mood of a place or situation

Business negotiation language, professional etiquette, and the formal register of commercial agreements in Chinese at C1 level

HSK 4 | verb | to present or show something to others

We are asked to implement a simple Caesar cipher. The input gives us a key k, an integer between 0 and 25, which represents how many positions each letter in the message should be shifted forward in the alphabet.

HSK 2 | measure word/noun | the metric unit of weight equal to one kilogram

N1 grammar pattern 〜きらいがある: expressing a negative tendency or inclination — 'has a tendency to' when the tendency is considered a fault or problem.

Sindarin nasal mutation: the complete and corrected change table, scholarly debate on voiceless stops, all triggers (plural article in, preposition an, verb-prefix en-), and worked examples.

HSK 5 | noun | large-scale digital data sets and their analysis