Everything

• phenol - OH+aromatic ring
• nitro- - NO2
• -amine - NH2 (only functional group)
• amino- - NH2 (may other functional group)
• -aldehyde - CHO
• -oic acid - COOH CO(OH)
• -oyl chloride - COCl
• -amide - CONH2 CO(NH2)
• -sulfonic acid - SO2OH
• vinyl - CH=CH2
• alkane -
• alkene =
• alkyne ≡
• alcohol - OH
• ether - OR
• thiol - SH
• ketone - OC
• -amide - CONH2
• ester - COO
• meth - 1
• eth - 2
• prop - 3
• but - 4
• pent - 5
• hex - 6
• hep - 7
• oct - 8
• non - 9
• dec - 10
• undec - 11
• dodec - 12
• epoxide

  
• ketone - O=C
• ester - O=CO
• carboxylic acid - O=COH
• amide - O=CN
• acid chloride - O=Cl
• anhydride - O≡O≡O
• thioether - SR
• -azide - N=N=N