| Acronym | Definition | 
|---|
| TLL➣Tool Lending Library (California) | 
| TLL➣The Learning Lab (Singapore) | 
| TLL➣Task Library Language | 
| TLL➣Temasek Life Sciences Laboratory (Singapore) | 
| TLL➣Thesaurus Linguae Latinae | 
| TLL➣This Little Light | 
| TLL➣Taylor Ladder Logic | 
| TLL➣Tau Lambda Lambda (fraternal organization; various locations) | 
| TLL➣Terra Lliure (Free Land; Catalan nationalist group) | 
| TLL➣Tallinn, Estonia - Ulemiste (Airport Code) | 
| TLL➣Totally Looks Like (Internet slang) | 
| TLL➣The Low Life (band) | 
| TLL➣Target Locator Line | 
| TLL➣Teaching & Learning Laboratory (Massachusetts Institute of Technology) | 
| TLL➣Tender Load List | 
| TLL➣Time-Lock Loop | 
| TLL➣Télévision Locale de la Loire (French: Local TV Loire; Loire, France) |