n5 biàn
n times
very frequent
many times
shén jīng ān suān méi
neuraminidase (the N of virus such as bird flu H5N1)
na
(particle equivalent to 啊 after noun ending in -n)
pái liè
array
arrangement
permutation (i.e. ordered choice of n elements out of m)
qián bí yīn
alveolar nasal
consonant n produced in the nose with the tongue against the alveolar ridge
tóng yú lèi
congruence class (of integers modulo n)