Orchid (a) skewer (b) sceptre (c) sham (d) chagrin ?

Orchid (a) - a type of flower
Skewer (b) - a long, pointed metal or wooden stick used for holding pieces of food together
Sceptre (c) - a ceremonial staff or rod held by a ruler as a symbol of power
Sham (d) - something that is not what it appears to be; a fake or imitation
Chagrin - a feeling of embarrassment or annoyance caused by failure or disappointment