See also:ꞌ[U+A78C LATIN SMALL LETTER SALTILLO],ˈ[U+02C8 MODIFIER LETTER VERTICAL LINE],‘[U+2018 LEFT SINGLE QUOTATION MARK],’[U+2019 RIGHT SINGLE QUOTATION MARK],ʻ[U+02BB MODIFIER LETTER TURNED COMMA],ʼ[U+02BC MODIFIER LETTER APOSTROPHE],ꞌ[U+A78C LATIN SMALL LETTER SALTILLO],ʹ[U+02B9 MODIFIER LETTER PRIME],-',and' '
When the final-o is replaced by an apostrophe, the word is stressed in the syllable that was the penultimate before the omission, thus the new final syllable.
Almost exclusively used in poetry and proverbs. In ordinary language it is barely used, and many Esperantists might even not understand it.
The apostrophe itself is sometime omitted by some poets, but this is considered non-standard and may create confusion.
More properly encoded as’ (U+2019RIGHT SINGLE QUOTATION MARK), but' (U+0027APOSTROPHE) is ubiquitous in computing for technical reasons and also used on Wiktionary for normalization purposes.
When used to represent a syllable break, the apostrophe is omitted if the word is hyphenated at the syllable break (liu’uttaa →liu-uttaa). It is however included in the other two cases.