Russian ⇄ English

навостриться v stresses
gen.	become adept (at); perk up (alikssepia); get the hang of (делать что-либо: From M-W: He was finally getting the hang of his job. She's getting the hang of driving. Mr. Lite)
Gruzovik, inf.	become good at (pf of навастриваться); acquire skill in (pf of навастриваться); get the hang of (pf of навастриваться)
inf.	acquire skill (in); get the hang (of); make understand; sharpen; whet; become good (at)
inf., fig.	teach
Makarov.	get skilled (at)
навострить v
gen.	prick up (уши); prick (уши Mermaiden); give an edge to; set an edge on
Gruzovik, fig.	teach (pf of навастривать); make understand (pf of навастривать)
Gruzovik, inf.	sharpen (pf of навастривать)
inf.	make understand; whet
inf., fig.	teach
навострённый prtc.
gen.	sharpened
навострив v
Makarov.	acock (уши)

навострить: 41 phrases in 6 subjects

American usage, not spelling	1
General	21
Idiomatic	9
Informal	1
Makarov	7
Slang	2