Aphabetic letter pairs in words

JI: jicama

JJ- Rajja

JK = rijksdaaler

Also, KLM Airlines, Koninklijke Luchtvaart Maatschappij

JL - Sejla

Serbo-Croatian female given name

JM - Ajmer, a district of Rajasthan, India

JN = prajna

JO - adjoining

JP: Rajput (Indian caste)

JQ = jQuery

a library of routines for JavaScript

JR - Hijrahs

JS-the two digit code for JavaScript scripts.

JT- Bojt

(JS = hajjs, plural of haj or hajj, a pilgrimage to Mecca)

JU = adjunct

JV- Gasselternijveenschemond, a Dutch town.

JW - ajwan

Also, Lajwanti, a film and a fashion line.

JX = JXplorer

JY - Jyothika

Mononymous Indian actress

JZ = Bajze

a town in Albania

KA - karaoke

KB: blackbird