What is the meaning of Jammer?

Any device used to jam radio reception.

A musician who jams.

A device (e.g. a jumar) which will slide along a rope in one direction but not the other, used in rock-climbing, caving etc.

A player who attempts to score points by making their way past other players.

sorry

sorry, regretful

wail, moan, woe

pitiful, sad condition or state of something.

too bad, unfortunately

unfortunate, sad

too bad, a pity

inflection of jammeren:

1. first-person singular present indicative
2. (in case of inversion) second-person singular present indicative
3. imperative

first-person singular present indicative

(in case of inversion) second-person singular present indicative

imperative

to jam; have a jam session

inflection of jammern:

1. first-person singular present
2. singular imperative

first-person singular present

singular imperative

Source: wiktionary.org