Core

осе́рдя

osérdja

(central part of fruit, containing the kernels or seeds)

осе́рдя

osérdja

(heart of a thing)

осе́рдя

osérdja

(center or inner part)

середи́на

seredýna

(center or inner part)

серцеви́на

sercevýna

(center or inner part)

серцеви́на

sercevýna

(something that produces a hollow space in a casting)

су́тність

sútnistʹ

(most important part of a thing)

суть

sutʹ

(most important part of a thing)

ядро́

jadró

(central part of fruit, containing the kernels or seeds)

ядро́

jadró

(center or inner part)

ядро́

jadró

(one of several parts in a computer processor)