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1.
A Japanese term, meaning "I'm in love with you"
Aishiteru, Ami.
by Ami April 16, 2004
 
2.
The Japanese word aishiteru, means i love you in English.
Guy: Aishiteru
Girl: Aishiteru too
by Amo0 January 25, 2011
 
3.
It means I love you in japanese.
Ai shiteru, Kaoru-san.
by Rainy~ March 05, 2010
 
4.
Although "aishiteru" is the Romanised form of the Japanese for "I love you", it's worth noting that the word isn't actually used very often in Japan.

Its most common usage by far is amongst weeaboos (see also wapanese) where you'll almost always see it spelled with the Roman alphabet like it is here.
Her: aishiteru~ :3
Me: please fuck off, I'm trying to play Xbox
by [PE]kawaii February 04, 2013