manifestation

a clear appearance; "a manifestation of great emotion"

a manifest indication of the existence or presence or nature of some person or thing; "a manifestation of disease"

an appearance in bodily form (as of a disembodied spirit)

expression without words; "tears are an expression of grief"; "the pulse is a reflection of the heart's condition"

a public display of group feelings (usually of a political nature); "there were violent demonstrations against the war"