以

until now; still; yet; (not) yet; since

prehistory

more than friends, less than lovers

since our last meeting; since we parted

On signage

No Unauthorized Persons; No Unauthorized Entry; Authorized Personnel Only

for as long as one can remember

since the beginning of the world; since the dawn of history

within minutes

Idiomatic expression

fight fire with fire; set a thief to catch a thief; fight one evil with another

after the decimal point; below the decimal

Nouns which may take the genitive case particle 'no'

of no account; beneath one's notice

below average

before one's birth; before one was born

Sub-Saharan Africa

prehistoric

Computing

non-zero

since the era of the Emperor Jimmu; (first ever) since the dawn of Japan's history; unprecedented

Idiomatic expression

being so content that one would not mind dying; one can now rest in peace; one ought to be contented with what has been accomplished

hard to replace (with other person)

exceedingly

Computing

non-integer

Japanese maple (Acer palmatum)

to control foreigners by foreigners; to play one barbarian state against another

controlling foreigners by foreigners; playing one barbarian state against another

Proverb

birds of a feather flock together