| Ig | Immunoglobulin in human and animal |
| IgG | Immunogobulin G |
| IgM | Immunogobulin M |
| Ag | Antigen, such as peptide, protein, cell and tissue |
| Ab | Antibody, including three main format, pAb, mAb and rAb |
| cAb | Capture Antibody |
| dAb | Detection Antibody |
| Ab2 | Secondary Antibody |
| pAb | Polyclonal Antibody |
| mAb | Monoclonal Antibody |
| rAb | Recombinant Antibody |
| Ab-Eng | Antibody Engineering |
| scFv | Single Chain Fragment Variable |
| VH | Heavy Chain Variable region |
| VL | Light Chain Variable region |
| Fab/(Fab)2 | Antigen binding fragment |
| Fc | Constant part of antibody |
| Bis-Ab | Bispecific antibody |
| VHH | Variable heavy chain Antibody |
| LFI | Lateral flow immunoassay |
