The prefix se- is short, stable, and extremely useful. It attaches to an ordinary base as one written word—seorang, sehari, setinggi—but takes a hyphen before a proper name or a capitalized abbreviation, as in se-Malaysia and se-ASEAN. Unlike the nasal prefixes, it does not replace or delete the first consonant of the base.
This page covers formation and spelling. The meaning page explains readings such as “one,” “the same,” “as...as,” and “throughout,” while the usage page deals with productive and fixed constructions.
The stable template
With an ordinary lower-case base, write se- + BASE solid. The base keeps its spelling. This holds across several kinds of base, although the resulting word's meaning depends on the construction.
| Base | Analysis | Actual form | Structural cue |
|---|---|---|---|
| orang “person” | se- + orang | seorang | prefix before a human classifier/noun |
| tinggi “high; tall” | se- + tinggi | setinggi | prefix before an adjective |
| Malaysia | se- + Malaysia | se-Malaysia | hyphen before a proper name |
| tiba “arrive” + -nya | se- + tiba + -nya | setibanya | prefix and clitic form one written word |
| hari “day” | se- + hari | sehari | prefix before a time noun |
| dunia “world” | se- + dunia | sedunia | prefix before a common noun |
Seorang jururawat memanggil nama saya dari kaunter.
A nurse called my name from the counter. (neutral)
Pokok itu hampir setinggi bumbung rumah kami.
That tree is almost as tall as the roof of our house. (neutral)
Pertandingan itu terbuka kepada pelajar se-Malaysia.
The competition is open to students throughout Malaysia. (formal)
Setibanya di stesen, kami terus membeli tiket bas.
Upon arriving at the station, we immediately bought bus tickets. (formal/neutral narrative)
Dia hanya minum secawan kopi sehari.
She drinks only one cup of coffee a day. (neutral)
Berita itu mendapat perhatian pembaca sedunia.
The news attracted the attention of readers worldwide. (formal/news)
Solid spelling with ordinary bases
Do not write se as a separate word before a common noun, adjective, numeral, or classifier. Seorang, sebuah, sekali, setinggi, sehari, and serumah are single orthographic words. The prefix is not the independent numeral satu, even though “one” is historically and semantically central to many of its uses.
Kami tinggal serumah semasa belajar di universiti.
We lived in the same house while studying at university. (neutral)
Boleh saya minta sebuah beg kertas?
May I have one paper bag? (polite conversation)
Saya pernah ke sana sekali sahaja.
I have been there only once. (neutral)
Malay learners whose first language is English may feel that a meaning like “one person” should remain two words, because English writes one person. Malay spelling reflects the prefix construction instead: seorang. The same principle applies even when English translates the result with several words, such as setinggi “as tall as” or sedunia “throughout the world; worldwide.”
Hyphen before a proper name
When se- attaches to a proper name that retains an initial capital, insert a hyphen: se-Malaysia, se-Asia, and se-Sabah. The hyphen makes the boundary between a lower-case prefix and a capitalized name visible. It does not imply that se is a separate word.
Kempen itu akan dilaksanakan secara serentak di sekolah se-Malaysia.
The campaign will be carried out simultaneously in schools throughout Malaysia. (formal)
Karya beliau telah dipamerkan di beberapa buah galeri se-Asia.
Her work has been exhibited in several galleries across Asia. (formal)
Ordinary common nouns remain solid: senegara “of the same country/across one country” and sedunia “worldwide,” because negara and dunia are not proper names in these forms. Capitalization, not word length or pronunciation, motivates the hyphen.
Pasukan itu menerima sokongan daripada peminat bola sepak senegara.
The team received support from fellow football fans from the same country. (formal/news)
Hyphen before a capitalized abbreviation
The same spelling principle applies before an abbreviation written in capital letters. Write se-ASEAN, not seASEAN or se ASEAN. In an appropriate formal context, the construction treats the named region or organization's member area as a whole.
Penyelidik se-ASEAN menghadiri persidangan alam sekitar itu.
Researchers from across ASEAN attended the environmental conference. (formal/academic)
This pattern is most at home in formal announcements, institutional writing, and headlines. It is not a reason to attach se- to every abbreviation. The underlying phrase must already support a natural se- meaning; otherwise use a phrase such as di seluruh... “throughout...” or dari seluruh... “from throughout....”
No root-consonant deletion
The form of se- does not vary according to the first sound of the base. Tinggi keeps t in setinggi, besar keeps b in sebesar, luas keeps l in seluas, and rumah keeps r in serumah. There is no counterpart of the deletion in menulis from tulis or penyapu from sapu.
| Base | Correct derivative | Preserved material |
|---|---|---|
| tinggi | setinggi | t remains |
| besar | sebesar | b remains |
| luas | seluas | l remains |
| rumah | serumah | r remains |
Bilik baharu itu dua kali sebesar bilik lama.
The new room is twice as big as the old room. (neutral)
Kawasan tadahan air itu hampir seluas daerah ini.
That water-catchment area is almost as large as this district. (formal)
Colloquial Malaysian speech may reduce seorang to sorang (informal, spoken), but standard writing retains seorang. A spoken reduction is not a productive spelling rule and does not justify deleting vowels or consonants from other se- forms.
What kinds of bases allow se-?
The prefix occurs with classifiers and nouns (seorang, sebuah, sehari, serumah), adjectives in comparison and extent constructions (setinggi, sebesar), numerals or quantifying forms (sekali), geographic nouns (sedunia), and a restricted set of verbal or temporal constructions (setiba, setibanya). This range is broad but construction-specific.
Do not conclude that se- may attach to every verb. English upon X-ing often corresponds to sebaik sahaja..., apabila..., or another clause rather than a newly coined se- form. Setibanya is established; a learner must not invent parallel forms merely because the intended meaning is understandable.
The semantic thread is historical “one”: one person (seorang), one day or per day (sehari), one shared house (serumah), one matched degree (setinggi), or one total extent (se-Malaysia). That thread helps learners connect the forms, but each construction still has its own syntax and usage.
Clitic attachment in setibanya
Setibanya contains both the prefix se- and the enclitic -nya: se- + tiba + -nya. All three pieces form one written word. In formal and neutral narrative, the construction means “upon his/her/its arrival” or simply “upon arriving,” with the understood participant supplied by context.
Setibanya di rumah, Amir mendapati pintu pagar masih terbuka.
Upon arriving home, Amir found that the gate was still open. (neutral narrative)
Setibanya rombongan itu di Kuching, mereka disambut oleh wakil universiti.
Upon the group's arrival in Kuching, they were welcomed by university representatives. (formal narrative)
English normally uses a preposition plus an -ing clause or a noun phrase. Malay packages this conventional temporal relation inside setibanya. Do not split it as se tibanya or setiba nya.
Common Mistakes
1. Writing se as a free word.
❌ Se orang pegawai sedang menunggu di luar.
Incorrect — se- and orang form one word.
✅ Seorang pegawai sedang menunggu di luar.
An officer is waiting outside. (neutral)
2. Omitting the hyphen before a proper name.
❌ Pertandingan itu terbuka kepada sekolah seMalaysia.
Incorrect — retain the capital in the proper name and insert a hyphen.
✅ Pertandingan itu terbuka kepada sekolah se-Malaysia.
The competition is open to schools throughout Malaysia. (formal)
3. Separating the prefix from a capitalized abbreviation.
❌ Wakil se ASEAN akan menghadiri mesyuarat itu.
Incorrect — use a hyphen, not a space, before the all-capital abbreviation.
✅ Wakil se-ASEAN akan menghadiri mesyuarat itu.
Representatives from across ASEAN will attend the meeting. (formal)
4. Inventing root-consonant deletion.
❌ Bangunan itu hampir seinggi menara tersebut.
Incorrect — tinggi keeps its initial t after se-.
✅ Bangunan itu hampir setinggi menara tersebut.
The building is almost as tall as that tower. (neutral)
5. Splitting off the clitic -nya.
❌ Setiba nya di pejabat, dia terus menelefon saya.
Incorrect — se-, tiba, and -nya form one written word.
✅ Setibanya di pejabat, dia terus menelefon saya.
Upon arriving at the office, she called me immediately. (neutral narrative)
Key Takeaways
- Write se- solid with ordinary bases: seorang, sehari, setinggi, serumah, sedunia.
- Use a hyphen before a proper name or capitalized abbreviation: se-Malaysia, se-Asia, se-ASEAN.
- Preserve the complete base; se- does not trigger nasal-prefix deletion.
- Write the prefix and clitic together in setibanya.
- The historical notion “one” connects the formation network, but only established constructions license attachment to a given base.
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