This template leaves leading space before the apostrophe, unlike the similar {{`}} (no spacing). This template is intended for use with italic text, whereas {{`}} is intended for use with non-italic text. For example:

  • The ''Iliad''{{'}}s vocabulary is archaic.

generates:

  • The Iliad's vocabulary is archaic.

with a tiny amount of space before the apostrophe to avoid colliding with the italic d at the end of Iliad. Conversely, {{`}} should be used if the text is already italicized. For example:

  • ''The ''Iliad''{{`}}s vocabulary is archaic.''

generates:

  • The Iliad's vocabulary is archaic.

without the extra space, which would be distracting here.