tükenmez kalem

== Turkish == === Etymology === Compound of tükenmez (“inexhaustible”) +‎ kalem (“pen”), literally “pen that does not run out [of ink]”. === Pronunciation === IPA(key): /ty.cen.mez kaˈlem/ === Noun === tükenmez kalem (definite accusative tükenmez kalemi, plural tükenmez kalemler) ballpoint pen Synonym: tükenmez