| Term | Definition |
| Alcohol/Hydroxyl | -OH |
| Alkene | -C=C- |
| isopropyl | -CH(CH3)2 |
| ethyl | -C2H5 |
| N,N-disubstituted amine | R-NR2 |
| N-monosubstituted amine | R-NHR |
| Carboxylic acid | -COOH |
| Carboxylic acid | -CO2H |
| Ester | R-CO2R or R-C(=O)OR |
| Carbonyl group (C=O) at the end of chain | Aldehyde |
| tertbutyl | -C(CH3)3 |
| Aniline | C6H5NH2 |
| Toluene | methylbenzene |
| ortho disubstituted benzene | substituted in positions 1 and 2 |
| meta disubstituted benzene | substituted in positions 1 and 3 |
| para disubstituted benzene | substituted in positions 1 and 4 |
| Amine AND Amdie | R-NH2 and R(C=O)NH2 |
| Carbonyl group | C=O |
| Aldehydes, ketones, amides and acids all contain | carbonyl group (C=O) |
| Styrene | (C6H5)CH=CH2 |