• rs,
• kms,
• kk,
• kds,
• ts,
• cks,
• oks,
• uks,
• bks,
• xs,
• eks,
• ls,
• fs,
• kas,
• js,
• aksi,
• naks,
• kj,
• akse,
• hs

• Y's,
• is,
• O's,
• M's,
• b's,
• n's,
• l's,
• d's,
• a's,
• f's,
• kg,
• ky.,
• p's,
• k's,
• i's,
• OK's,
• kr,
• b.s.,
• P.S.,
• h's,
• e's,
• c's,
• U.S.,
• u's,
• -'s,
• as,
• g's,
• w's,
• Ms.,
• S,
• K,
• z's,
• s's,
• q's,
• ky,
• x's,
• j's,
• -s,
• ms,
• us.

The adjective form of the word "ks" would be "ks-ish".

The plural form of the word "ks" is "kss"

The singular form of the word "ks" is "k"