Compare diphthong conventions and mark a syllable break.

Open the Diphthongs chart in an empty practice editor and turn off Smart IPA suggestions while entering notation. Plan two rows before clicking. The first will compare two selected English phonemic conventions; the second will illustrate two different phonetic syllable structures. This separation prevents the brackets and slashes from becoming unexplained decoration.

A diphthong changes quality within one syllable. Its two vowel letters provide a compact way to describe that movement, not instructions to produce two isolated vowels with a pause. Conversely, two adjacent vowel symbols do not automatically prove a diphthong analysis. The supplied task must tell you what syllable structure is intended.

Type a slash, select əʊ from the United Kingdom group and type the closing slash. After a space, open another pair of slashes and select oʊ from the USA group. The buttons insert the complete sequences. You are comparing two established broad GOAT-vowel conventions, not asking the site to derive a pronunciation from spelling.

Those group headings simplify a much more varied picture. There is no single British or American pronunciation, and some English accents have comparatively monophthongal realizations. Starting quality and degree of movement can also differ between speakers who share a broad symbol. In actual work, name the accent model or speaker and follow a consistent reference.

Press Enter, open a square bracket, select aɪ and close the bracket. Add a space and another opening bracket, then select aɪ again. With the caret immediately after the inserted pair, press Left once, type a dot and press Right once before closing the bracket. This places the boundary between a and ɪ.

The two bracketed forms now express the stipulated difference: one changing vowel nucleus versus two separate syllables. The dot is meaningful notation, not a decimal point or an optional visual separator. The task supplies this analysis; it makes no claim that a particular English word must have either form. This is a useful way to practice boundary placement without relying on spelling.

Review both rows, then use Download text. Open the saved file and verify that the first row still distinguishes ə from o and the second retains its single syllable-break dot. The verified text file contains the exact two-line result above. Selecting a chart item generates a symbol string; it does not provide an accent analysis or count syllables for you.

If you reuse the example in teaching notes, keep its caption. Slashes identify phonemic units under the selected English analysis; square brackets identify phonetic representations. They are not simply interchangeable labels for broad and narrow transcription. Retaining that explanation makes the comparison useful even for readers who follow a different dictionary convention.