alam

/alam/

Cases

SingularPluralWhen to use it
nominativealamthe worldalamlathe worldsthe plain dictionary form — the doer of the sentence
genitivealamnıthe world'salamlanıthe worlds'the owner — whose it is
accusativealamnıthe world (as the object)alamlanıthe worlds (as the object)a specific, known object — whom or what
dativealamğato the worldalamlağato the worldsdirection or recipient — to where, to whom
locativealamdaat / in the worldalamladaat / in the worldswhere it is; also having — mende bar, "I have it"
ablativealamdanfrom the worldalamladanfrom the worldswhere it comes from; also "than" when comparing
When to use each case
nominative
the plain dictionary form — the doer of the sentence
genitive
the owner — whose it is
accusative
a specific, known object — whom or what
dative
direction or recipient — to where, to whom
locative
where it is; also having — mende bar, "I have it"
ablative
where it comes from; also "than" when comparing

The endings are the same ones the pronouns wear — that page explains when each case is used.

With an owner

One ownedSeveral owned
myalamımmy worldalamlarımmy worlds
youralamıngyour worldalamlarıngyour worlds
his / heralamıhis / her worldalamlarıhis / her worlds
ouralamıbızour worldalamlarıbızour worlds
you all'salamığızyou all's worldalamlarığızyou all's worlds
theiralamlarıtheir worldalamlarıtheir worlds

The overlap in the last rows is real, not a mistake: alamları can mean "his / her worlds", "their world", or "their worlds" — context decides.