Meanings

temporal region

to go first

milk shark (Rhizoprionodon acutus)

long sword with birds' heads carved on the pommel

being very forgetful

Irrawaddy dolphin (Orcaella brevirostris)

pygmy killer whale (Feresa attenuata)

melon-headed whale (Peponocephala electra)

snakeheads

humble

thinly sliced salmon head cartilage (also whale etc.)

muscle-contraction headache

tension headache

muddleheaded

to get one's head around

advance troops

to become the head (of a group, organization, etc.)

unsparingly

brain work

brain worker