[n] asas, dasar, formal, konvensional, lazim, normal, pangkal, patokan, pokok, seragam, standar, tolok ukur, tonggak, ukuran, utama;
[adv] saling;

[adv] baku, berbalas-balasan, sama-sama, silih

1) [adv] saling;
2) [v] ganti, tukar; ubah;