ка́пнуть

rare #26806

verbperfective imperfective is ка́пать

1.
to drip, to fall in drops, to trickle
На него́ ка́пнуло что́-то ли́пкое.
Something sticky dripped onto him.
Perfective: a single drop or a brief dripping.
2.
to put a drop of, to let a drop fall, to spill a drop of
Ка́пни лека́рство в стака́н воды́.
Put a drop of the medicine into a glass of water.
Transitive: with the substance in the accusative or genitive.
3.
to squeal on someone, to inform on someone, to dob someone in
Кто́-то ка́пнул на него нача́льству.
Someone squealed on him to the bosses.
colloquial; used with на кого-либо

Examples

Зачерпнутое ложкой варенье капнуло на стол.
The jam scooped up with a spoon dripped onto the table.
Не капни краской на новый пол.
Don't drip paint on the new floor.
Мальчик, замасливающий шестерёнку, старался не капнуть на пол.
The boy oiling the gear tried not to drip on the floor.
На рукав капнула капля воды.
A drop of water fell on his sleeve.
Он капнул сургуч на конверт.
He dripped sealing wax onto the envelope.
Он капнул начальнику про коллегу.
He informed the boss about his colleague.

Imperative
ты	ка́пни
вы	ка́пните

Active present	-
Active past	ка́пнувший	having dripped, having dropped (in drops)
Passive present	-
Passive past	ка́пнутый	dripped, dropped (as a liquid)
Gerund present	-
Gerund past	ка́пнув капнувши	while doing (past)