A conjunction is a part of speech that connects two words, sentences, phrases or clauses together. Conjunctions are invariable and stand between the items they conjoin. There are three types of conjunctions: coordinating conjunctions join two or more items of equal syntactic importance, correlative conjunctions are conjunctions that work in pairs, and subordinate conjunctions link a dependent clause to an independent clause. Here is an (incomplete) list:

Coordinating conjunctions

a „and, but”
a takože „as well as”
abo „or”
ale „but”
i „and”
ili „or”
jednako „however”
než, neželi „than”
pa „so”
poněže „whereas”
ubo „therefore”

Correlative conjunctions

čim ... tym ... „the ... the ...”
ili ... ili ... „either ... or ...”
kako ... tako i ... „both ... and ...”
koliko ... toliko ... „the ... the ...”
ne jedino ... ale takože „not only ... but also ...”
ni ... ni ... „neither ... nor ...”

Subordinate conjunctions

aby „in order to”
ače „although, though”
ako (li) „if”
ako ne „unless”
či „whether, if”
dokolě „as long as, while
dopoka „as long as”
dopoka ne „till, until”
hoti „although”
ibo „since, because”
jer, jerbo „because”
jestli „if”
kako by „as if”
kogda/kogdy „when”
li „whether, if”
odkogda/odkogdy „ever since, for as long as, since”
odkųd „since”
poka „while, so far as”
pokoliko „inasmuch as, insofar as” poneže „whereas”
tako že „so that”
toliko kako „as much as”
tomu že „because”
zato že „because”
že „that”
že by „in order to, so that”