Collocations with truth 

truth noun

1-) what is true

ADJECTIVES

absolute, gospel
honest
real
full, whole
exact, literal
naked, plain, simple
underlying
awful, bitter, cruel, dreadful, hard, harsh, horrible, horrid, painful, sad, shocking, terrible, unpalatable, unpleasant, unwelcome
objective
empirical, historical, moral, poetic, psychological, religious, scientific, spiritual
divine

QUANT.

element, grain

VERBS

know
admit, speak, tell (sb)
establish, discover, find out, get at, learn, reveal, uncover
guess
accept, acknowledge, face (up to)
doubt
conceal, cover up, hide, suppress
be, lie
come out, emerge
dawn on sb

PREPOSITIONS

in
about
behind
in

PHRASES

be economical with the truth
nothing could be further from the truth
the quest/search for (the) truth, a ring of truth
a seeker after truth
the truth of the matter
the truth will out

2-) fact that is true

ADJECTIVES

basic, central, common, essential, eternal, fundamental, general, great, important, profound, simple, ultimate, universal
ancient
obvious, self-evident, undeniable
underlying
half, partial
harsh, home, painful, unpalatable, unpleasant, unwelcome
necessary
moral, philosophical, scientific, spiritual
divine

VERBS

establish, reveal, uncover
tell sb
accept, acknowledge, face up to

PREPOSITIONS

about