- seasonal unemployment
- SEC
- second derivative
- second order of magnitude
- second-best
- second-degree price discrimination
- second-hand
- second-order conditions
- secondary market
- sector
- secular stagnation
- secular trend
- secured loan
- Securities and Exchange Commission
- Securities and Investment Board
- securities market
- securitization
- security
- security of tenure
- segmented market
- seigniorage
- Select Committee on Estimates
- selection
- self-assessment, tax
- self-correcting system
- self-employment
- self-financing
- self-fulfilling expectations
- self-regulation
- sell
