iru いる, 要る - To Need

In Japanese, iru いる, also spelled iru 要る, means "to need," or rather, it means "to be necessary" for something or by someone.

This iru to be confused with the iru いる that means "to exist." Or with the other iru いる.

Some usage examples. Note that sentences containing iru いる are often double subject constructions (～には～がいる).

• watashi niwa {okane ga iru}
  私にはお金がいる
  {Money is necessary} is true for me.
  I need money.
• {kau} no niwa {okane ga iru}
  買うのにはお金がいる
  {Money is necessary} is true for the act of {buying}.
  To buy, money is necessary.
  It takes money to buy [something].
• {kangaeru} jikan ga iru
  考える時間がいる
  Time {to think} is necessary.
  [I] need time {to think}.
• sonna mono ga iranai!
  そんなものがいらない！
  Something like that isn't necessary!
  [I] don't need something like that!
• sonna mon iranee ttsuu no!
  そんなもんいらねーっつの！
  [I'm] telling [you], [we] don't need something that!
• iran!
  いらん！
  Don't need [it]!
  • Not to be confused with Iran イラン, the middle-eastern country.
• boku niwa kimi ga iru
  僕には君が要る
  I need you. (often in the romantic sense.)
• boku wa {iranai} ningen nanda
  僕はいらない人間なんだ
  I'm an {unnecessary} human.
  I'm not needed.
  • Often used by suicidal or mentally unhealthy characters. Implies they aren't wanted by anyone, or have been discarded, thrown away for they aren't necessary.