Sound Series
Sound Series
批 pī and the 比 bǐ inside it look unrelated once the pinyin letters disagree, so the shared part gets discarded. The letters are treated as the test of whether two characters still belong together.
They are the wrong test. Centuries of sound change sit between modern Mandarin and the Old Chinese readings those parts first recorded. Read as a family — every character built on one sound component — the scatter collapses into a few related-initial groups. Saying both syllables aloud shows whether the tongue or lips still touch in the same place.
Tone, and the seven groups
A sound series is a sound object. Member meanings are noise at this stage; they only hide the pattern. Sound Components is the single-character mechanism this page scales.
Series membership is tone-blind. Old Chinese likely had no meaning-distinguishing tones, so a shared ancestor does not have to share a modern tone. Speech stays tone-strict, because modern Mandarin does. Mixing those two facts is the easiest misread on this page.
A series where every member matches even in tone is rare. 府 → 俯 腐 腑, all fǔ, is that kind of family. The normal case looks like 侯 hóu → 候 hòu, 喉 hóu, 猴 hóu: tones scatter, the family stays legible. Treating the all-fǔ family as the prototype turns every ordinary series into apparent counter-evidence.
When the rhymes make no sense, the relationship lives in the initials. Seven groups cover the usual swaps. The test is physical: pronounce both and notice where the tongue or lips contact.
| Group | Prototype | Members |
|---|---|---|
| {t, d} | 同 | 銅 洞 筒 |
| {zh, ch, sh} | 成 | 城 盛 誠 |
| {j, q, x} | 巠 | 經 輕 勁 徑 |
| {b, p, f} | 非 | 菲 排 悲 輩 |
| {g, k, h} | 舌 guā (not 舌 shé) | 話 刮 活 括 |
| {z, c, s} | 曾 | 增 層 贈 僧 |
| {m, w} | 門 | 問 們 聞 悶 |
The first six are place-of-articulation families. {m, w} is looser: m and w are not a voicing pair, but both form at the lips. 勁 jìn sits in the {j, q, x} row with siblings in -ng; the vowel is the exception, and flagging it keeps the rest of the row trustworthy.
Slack, one crossing at a time
The groups are not airtight. b and p both use the lips; f is lip-to-teeth; they still swap inside 非. The same labial drift runs through Indo-European — father / Vater, fish / Fisch against poisson — one clause of general sound change, not a second subject.
Vowels can wobble inside a healthy series. The 舌 guā family moves between -uo and -ua and stays a family.
Three interactions sit on top of the seven, and they are not a second table to memorize first.
{g, k, h} crosses {j, q, x}. Soft g of George against German Georg is the same palatalization. 古 yields 故 估 苦 胡 and also 居 鋸. 夬 yields 決 缺 快.
{d, t} crosses {zh, ch, sh}. English -tion lands as sh; “watcha” fuses t+y. Ancient d shifted to zh in 占 and stayed in 店. One series is enough to see it: 單 → 彈 戰.
{g, k, h} crosses {l}. 各 yields 客 格 貉 胳 beside 路 略 落 絡.
Memorizing the crossings up front adds load without payoff. Once the seven run automatically, a cross-group pair announces itself.
What declared relatedness does
Once the groups stand as a declared boundary, a new instance becomes usable. A trained learner can see links pinyin hides. The install of seven groups is the price, paid before any crossing pays.
That is not effortless. It is permission: the initials belong together, so the next unfamiliar character is kept or discarded by mouth instead of by spelling.
The IME Method is where a series guess becomes a candidate in recall. Rules of Effective Memorization is the general form of a declared fence and of derive-rather-than-store.
How the groups get in
The seven groups go in first. They are memorized. Related members are said aloud. Every new reading that relates to its component is noticed as a group, not as a one-off spelling.
Doubt is resolved with the mouth. t and d share a place; p lives at the lips. If the letters fight and the mouth agrees, the family stays.
Singing the membership is optional. A verse pairing 張 Zhāng with 湯 Tāng turns group membership into an auditory structure. It is a technique, not a requirement.
Early confusion is normal. After the base settles, a reread starts returning plausible guesses at unstudied characters.
Where the series breaks
Surface spelling overrides articulation wherever pinyin letters get trusted over the mouth test. The 比 / 批 refusal repeats.
Treating the all-fǔ 府 family as the prototype is the second break. Every tone-scattered series then looks like a counterexample.
Tone-blindness leaking into speech is the third. Spoken Mandarin punishes that immediately. Membership ignores tone; speech does not.
Multiple readings usually branch from one original sense. 盛 chéng / shèng both grow from “put into a container.” The other forks — 彈, 說, 轉 — belong on Meaning Trees and Original Meanings.
Merged glyphs are a different trap. 舌 in 話 / 活 / 刮 / 括 abbreviates a distinct ancient guā. 舌 shé “tongue” is a separate glyph that collapsed into the same modern shape. That is why the {g, k, h} row already carries “(not 舌 shé).” 括 guā / kuò is ordinary {g, k} and -ua / -uo.
Sound-only components get promoted to meaning. 夬 contributes pronunciation alone; hunting a semantic role in 決 / 缺 manufactures false structure. 侯’s 亻-like stroke belongs to the depicted target; 候 carries a genuine 亻. Empty Components owns the sound-only promotion. Form Components owns the depicted-target half of 侯.
Seven is a house inventory, not a closed natural class. {m, w} is already looser. Crossings memorized early are load without payoff. If every tone-scattered series is being thrown out, 府 was taken as the prototype. What “working” looks like: an unstudied character whose phonetic is known becomes a short list of related-initial guesses, not a coin-flip.
The letters still disagree. The family is now the thing that gets checked — mouth first, groups first, crossings later. Speech still pays for tone.
Links into the knowledge base
- How Chinese Characters Work — the hub: this page scales Sound Components and does not replace it.
- Sound Components — the single-character mechanism this scales.
- Meaning Trees and Original Meanings — reading forks of 盛, 彈, 說, 轉.
- The IME Method — series guesses feed recall.
- The Pipelining Strategy — spoken-word days draw on series.
- Rules of Effective Memorization — fence principle; derive-rather-than-store.
- The Hán-Việt Bridge — the same sound-family reasoning across languages.
- Empty Components — sound-only parts promoted to meaning.
- Form Components — the depicted-target half of 侯 / 候.
Open Questions
Is seven a closed inventory, or do further groups earn a seat later?
How far the same series reasoning projects into other Sinitic varieties, Japanese, Korean, and Vietnamese is the job of The Hán-Việt Bridge, not a second table here.
Where sound-only components live, as a class, sits on Empty and Form.
Sources
Bernhard Karlgren, Grammata Serica Recensa (Stockholm: Museum of Far Eastern Antiquities, 1957). Phonetic series (諧聲) as the backbone of Old Chinese reconstruction.
William H. Baxter and Laurent Sagart, Old Chinese: A New Reconstruction (Oxford: Oxford University Press, 2014). Place-of-articulation families and the palatalization splits this page teaches as seven groups plus three crossings.
André-Georges Haudricourt’s tone-genesis account, as summarized in standard historical Chinese phonology: Old Chinese without meaning-distinguishing tones; modern tones later. Series membership can ignore tone; spoken Mandarin cannot.