The Weak Vowel

In unstressed syllables in English, vowels are not very distinct. The only vowels that usually appear in unstressed syllables are /i/, as in “buddy|bəd·ii” or “react|rii·akt”; /u/ as in “casual|kazh·uu·əl”; and either /ə/ and /ɪ/, which are collectively known in rook script as the weak vowels or the weak vowel. Sometimes they are also called schwa and schwi, respectively.

Is the weak vowel one or two sounds? Like most General American English speakers, in most contexts I do not audibly distinguish between weak /ə/ and weak /ɪ/. Nearly all people struggle at some point when learning to distinguish between spelling words ending in “able” and “ible”, though the spelling suggests distinction. Similarly, most people find it difficult to spell the words “affect” and “effect” correctly. However, there are a some words with unstressed syllables where one letter is obviously the better choice, such as “unsound|ən·saund” vs “insane|in·sein” or “Rosa’s|rouz·əz” vs “Rose’s|rouz·iz”.

Rook script takes the view that there is one weak vowel, spelled with either ə or i, depending on context. In the cases above, at least one of the examples contains a non-weak vowel. The weak vowel is spelled with ə when a syllable has no coda or the coda begins with r, n, or l; and spelled with i when followed any other letter in coda.

Here are some examples of the weak vowel spelled normally:

Latin	rook (romanized)
assert	ə·sərt
bearable	beir·ə·bəl
dogma	daag·mə
manatee	man·ə·tii
gopher	gouf·ər
payment	pei·mənt
vocal	vouk·əl
gated	geit·id
crutches	krəch·iz
registry	rej·is·trii
magically	maj·ik·lii
levity	lev·it·ii
bonus	boun·is
honest	aan·ist

Note that in many cases the letter used for the weak vowel depends on the placement of a syllable boundary.

Many words are often pronounced with a weak vowel but when enunciated clearly use some other letter or letters. It’s often preferable to spell these words with a non-weak vowel. However, rook script aims to capture English as it exists in speaking, rather than as it was taught in Latin script. Official spellings therefore reflect hesitance to use anything other than the weak vowel in unstressed syllables (however however, there is no need for hesitance in the case of proper nouns and loanwords). Examples of words that are sometimes pronounced with a weak vowel but spelled otherwise include:

Latin	rook (romanized)
design	dii·zain
elect	ii·lekt
philosophy	fi·laas·ə·fii
escape	es·keip
absorb	əb·zourb
advance	ad·vans
protect	prou·tekt
today	tuudei
Jacob	jeik·əb
Europe	yuur·əp

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