brain
tamnd's digital brain — notes, problems, research
43815 notes
HSK 5 | noun | intrinsic property or attribute belonging to something
HSK 5 | verb/noun | to arrange and position forces, resources, or plans strategically
Advanced Sindarin: primary source scholarship, Neo-Sindarin evaluation, advanced composition, and engaging with the Tolkien linguistics community.
HSK 5 | noun / verb | the process of converting to digital form or integrating digital technology
鳥 (チョウ/とり): bird. JLPT N5 essential kanji.
HSK 4 | noun | a detailed plan or scheme for achieving something
HSK 3 | conjunction | since, now that, given that — accepts a premise and draws a conclusion from it
HSK 3 | noun | map — a visual representation of an area used for navigation
HSK 4 | noun / adjective | civilization or being civilized
Master Esperanto's 28-letter phonemic alphabet, including the six diacritic letters and the X-system alternative.
上 (jou/shou/ue): above. JLPT N5 kanji.
HSK 5 | noun/verb | marketing; to market (products or services)
Learn 〜にかかわらず to express that something applies regardless of a condition or variable, in formal Japanese.
A comprehensive review of all A1 grammar, 100 essential vocabulary words, key survival phrases, and guidance on the path to A2.
HSK 4 | noun | engineer
HSK 3 | verb/adjective | to feel anxious or concerned about something
HSK 5 | adjective / adverb / noun | basic and essential; at the most basic level; not at all (negative)
生 (life, birth): 5 strokes, JLPT N5. On: セイ、ショウ. Kun: いき-る、うま-れる、なま.
HSK 4 | noun | skill; technical ability; competence
HSK 5 | noun | a system of interacting organisms and their environment
HSK 1 | greeting phrase | standard farewell expression
HSK 5 | noun | organized and interconnected system of elements
HSK 3 | verb / adjective | to understand, to be clear about something
JLPT N4 kanji 員 — readings, vocabulary, stroke order, mnemonic, and common confusion pairs.
HSK 5 | verb | to trace back to a cause; to attribute; to come down to
HSK 3 | adj/noun | the most important or decisive element
HSK 4 | conjunction / preposition | indicating cause or reason
HSK 3 | noun | class, classroom group; work shift; scheduled service
午 (go/): noon. JLPT N5 kanji.
HSK 5 | verb/noun | the state of being unable to repay debts; financial insolvency
Develop systematic strategies for reading complex Chinese texts efficiently, including contextual inference, identifying main ideas, and detailed comprehension.
Master Esperanto's system of indirect speech, including tense non-backshift, reported questions, and commands in ke-clauses.
N1 grammar pattern 〜ものがある: expressing that something has an ineffable quality or characteristic that the speaker cannot easily put into words but strongly senses.
JLPT N4 kanji 病 — readings, vocabulary, stroke order, mnemonic, and common confusion pairs.
HSK 4 | verb/noun | to establish with certainty that something is true or agreed upon
HSK 3 | adjective | cute, adorable, or lovely
複雑な (ふくざつな / fukuzatsu na): complicated. N4 level Japanese vocabulary.
HSK 1 | adjective | long (in length or duration)
HSK 3 | noun | education; the process of teaching and learning
Recognize and produce Esperanto in four distinct registers — literary, journalistic, scientific, and colloquial — with appropriate vocabulary and syntactic choices.
HSK 4 | verb/noun | the art or act of preparing food by applying heat
Result and method clauses in Chinese scientific prose — vocabulary, structure, and the conventions of academic argumentation in Chinese research writing
HSK 4 | noun | media content delivered continuously over the internet
Learn Esperanto numbers from zero to a million, including ordinals, fractions, and arithmetic expressions.
HSK 4 | noun | a pattern, mode, or established model of operation
HSK 5 | verb/noun | the process of manufacturing or creating goods
HSK 5 | adjective | precise, exact, accurate
Master the essentials of Japanese introductions, polite greetings, and basic sentence structure to start your first conversations with confidence.
Complete Sindarin verb conjugation for present tense: aorist (simple) and continuative (ongoing) for both A-stem and primary verb classes, all 6 persons.
HSK 3 | verb/noun | behavior, performance, or how something manifests
HSK 1 | noun | a week; combined with numbers 1–6 or 日/天 to name weekdays
Sindarin intransitive verbs, class 3 i-verbs, irregular stems with suppletive roots, and half-strong verb formation.
Codeforces 479A: Expression
HSK 3 | noun | a division of the academic year
Advanced Sindarin plural patterns: monosyllables, diphthong shifts, vowel intrusion, class plurals (-ath, -rim, -hoth), and the definite article with plurals.
HSK 1 | verb, noun | to stand, a stop or station
HSK 4 | adjective | having a sharp, unpleasant taste; also describing hardship
〜てあげる: JLPT N4 grammar pattern. Usage, structure, examples, and comparison with similar patterns.
HSK 5 | adjective/verb | not changing or fluctuating; to make or become steady
HSK 5 | adjective/verb | feeling troubled, distressed, or tormented; to trouble
HSK 5 | verb | to examine and check something carefully for accuracy or compliance
年 (year): 6 strokes, JLPT N5. On: ネン. Kun: とし.
Japanese work and business vocabulary: professions, office settings, keigo expressions, job hunting terms, and workplace culture.
Mastering 法律文书 writing conventions and the specialized register of Chinese legal discourse.
HSK 5 | noun/verb | first aid; emergency medical treatment
HSK 4 | noun | a mobile phone with advanced computing capabilities
HSK 1 | greeting phrase | farewell used when you will meet the person the next day
白 (white): 5 strokes, JLPT N5. On: ハク、ビャク. Kun: しろ、しら、しろ-い.
Complete HSK 4 vocabulary reference: approximately 1,000 new words at B1 level, organized by semantic category with pinyin, English, part of speech, and usage notes.
HSK 2 | particle | softens suggestions, assumptions, and tag questions
HSK 2 | verb | to grasp the meaning of a skill, language, or subject; contrast with 明白
HSK 2 | adjective | describes an absence of noise or disturbance
N1 grammar patterns 〜てこそ and 〜ばこそ: using the classical emphatic particle こそ to express that something is meaningful or possible precisely because of X.
Master the paired connectives 虽然...但是, 因为...所以, and 尽管...还是 to express contrast and cause-effect relationships in complex sentences.
HSK 5 | verb | to foster, incubate, or bring forth something new
HSK 3 | verb / noun | to discuss, talk over; a discussion
考える (かんがえる / kangaeru): to think, consider. N4 level Japanese vocabulary.
Master formal, semi-formal, and informal letter and email writing in Esperanto, including structure, formulaic expressions, and epistolary conventions.
HSK 5 | noun | indicator; metric; target figure used to measure performance or status
Mastering the rhetoric of 答辩: presenting, fielding challenges, and closing arguments in Chinese academic and professional oral defense.
HSK 4 | verb/noun | to gather information systematically through research or examination
N1 grammar pattern 〜ないではすまない: modern variant of 〜ずにはすまない. Cannot avoid doing X due to social/moral necessity. Slightly more contemporary in feel.
Use the experiential aspect marker 过 and contrast 以前 with 以后 to discuss past experiences and changes.
JLPT N4 kanji 工 — readings, vocabulary, stroke order, mnemonic, and common confusion pairs.
HSK 4 | noun | a person with deep knowledge in a specific field
HSK 4 | noun | a trained professional who provides therapy or treatment
HSK 4 | noun | rule; regulation; norm
HSK 3 | noun | text message, SMS, short message
HSK 5 | verb | to emerge; to spring up; to appear in abundance
HSK 3 | verb | to become something through change or development
HSK 4 | noun | the sweet or sour fleshy product of a tree or plant
Mastering the full Chinese register continuum: shifting between formal, informal, written, spoken, and specialized registers with native-level control.
All four Latin participles (PAP, PPP, FAP, gerundive), their formation and declension, and the ablative absolute construction with worked examples.
車 (sha/kuruma): vehicle. JLPT N5 kanji.
Reference guide to the 214 classical radicals (bushu) used in Japanese kanji — with meanings, stroke counts, variant forms, and key example kanji.
Master formal Japanese time and occasion markers used in official speeches, ceremonies, and business announcements — 〜にあたって, 〜に際して, 〜に先立って, and more.
HSK 5 | noun | imagination; the power or capacity to imagine
HSK 5 | noun/verb | contamination of the environment; to contaminate
HSK 5 | noun | the Internet; the World Wide Web