(1)〈美〉社会保障编号
其作为一种用以确认身份的编号，不仅在为社会福利，而且在其他情况下如编制税务报告时也会用到。

(2)账号；对账户所规定的号码
一般以数字表示，并按编号排列账页，以便于记账和查阅。

• Lex Julia Norbana
• lex Junia Velleja
• Lex Kantiae
• lex Laetoria
• lex lata
• lex loci
• lex loci actus
• lex loci celebrati contractus
• lex loci celebrationis
• lex loci commissi
• lex loci contractus
• lex loci delictis
• lex loci delictus
• lex loci domicilii
• lex loci rei sitae
• lex loci sitae rei
• lex loci solutionis
• lex longobardorum
• tradidi
• trading contract
• trading corporation
• trading firm
• trading partnership
• trading stamps
• trading voyage