ショウ 
あかし 
() evidence () proof () certificate
                  
あかし (n) (1) proof, evidence, testimony, (vs) (2) to testify (usu. Christian religious context)
しょうこ (n) evidence, proof
しょうけん (n) securities, bonds, certificates
しょうげん (n,vs) evidence, testimony
しょうしょ (n) bond, deed, certificate
しょうにん (n) witness
しょうめい (n,vs,adj-no) proof, verification
しょうめいしょ (n) certificate (usually of proof of something), credentials

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Etymologies: 中文字譜 : 説文解字