noun
Common noun for the insect. No special usage restrictions.
公園のベンチの下にありの行列ができていた。
A line of ants had formed under the park bench.
ありが砂糖に群がっている。
Ants are swarming over the sugar.
Native Japanese word. The kanji 蟻 is a phono-semantic compound with 虫 (insect) and 義 (phonetic component).