Word Joiner explanation

l10n
#1

In Help Master, Word Joiner is explained as follows:

    Inserts an invisible space within a word that will keep the word
    together at the end of a line. Available when complex text layout
    (CTL) is enabled.

But as far as I understand what Word Joiner (Unicode U-2060) does, no space is inserted here. Maybe a better solution is

    Inserts an invisible /character/ within a word that will keep the
    word together at the end of a line. Available when complex text
    layout (CTL) is enabled.

Replace "space" with "character" or something?

Kolbjørn