There is in the Esperanto language a word Ĉu which is spelled as C circumflex followed by u. To English hearing ears it sounds like “Choo” as in the song “Chattanooga Choo Choo”.
http://en.wikipedia.org/wiki/Chattanooga_Choo_Choo
The Ĉu word approximately translates into English as “whether”.
Its use is important as the word Ĉu can be put at the start of a sentence that is a statement and the full stop at the end of the sentence changed for a question mark and that turns that sentence into a question, without any changing or reordering of words.
So, I have assigned U+E880 as a stylized version of the word Ĉu which the idea that it changes the next Emoji item into a question.
Thinking further on this I have assigned U+E881 as a stylized version of the word Ĉu with a past tense verb implied, U+E882 as a stylized version of the word Ĉu with a present tense verb implied, U+E883 as a stylized version of the word Ĉu with a future tense verb implied. The letters used for the augmentation of the basic design used for U+E881, U+E882 and U+E883 are I, A, O respectively, those particular letters used because they relate to the way that Esperanto verbs are conjugated.
The font is available as follows.
http://www.users.globalnet.co.uk/~ngo/EMOJI002.TTF
So, using the list of Emoji linked from the
http://www.nttdocomo.co.jp/english/service/imode/make/content/pictograph/basic/index.html page there could be the following.
U+E640 Rain
U+E881 U+E640 Has it been raining?
U+E882 U+E640 Is it raining?
U+E883 U+E640 Is it going to rain?
U+E641 Snow
U+E881 U+E641 Has it been snowing?
U+E882 U+E641 Is it snowing?
U+E883 U+E641 Is it going to snow?
These four new characters could be applied before an emoji item where the combined meaning makes sense.
If these emoji get used they might need a colour assigned, so I suggest green as that is the colour used for Esperanto.
These four new characters would not be useful for all question situations.
For U+E665 Post office maybe some other question emoji operator would be needed, such as a WHERE IS THE … PLEASE?
Maybe the Esperanto word for where could be stylized to make such an emoji item. Maybe other Esperanto words could be stylized to make other emoji items.
http://en.wikipedia.org/wiki/Esperanto_vocabulary#Correlatives
Using such question operators could result in more emoji being defined. For example, one for PHARMACY.
William Overington
1 September 2007