jar

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A cylindrical glass or earthenware vessel with a wide mouth and usually no handles.
• noun The amount that a jar can hold.
• noun Chiefly British A glass of beer.
• transitive verb To put into a jar.
• intransitive verb To cause shaking or vibrations.
• intransitive verb To shake or vibrate from an impact or impacts.
• intransitive verb To be disturbing or irritating; grate.
• intransitive verb To be out of harmony; clash or conflict.
• intransitive verb To cause to shake or vibrate from impact.
• intransitive verb To startle or unsettle; shock.
• noun A jolt; a shock.

from The Century Dictionary.

• noun A rattling sound; a harsh sound; a discord.
• noun A clashing of interest or opinions; collision; discord; debate; conflict: as, family jars.
• noun A short tremulous motion or vibration, as from an impulse; a sudden shaking or quiver: as, to feel the jar of an earthquake, or from blasting.
• noun A clicking or ticking vibration, as of a pendulum; a tick.
• noun plural A sliding joint in the boring-rods used in rope-drilling.
• To produce a brief rattling or tremulous sound; be discordant in sound.
• To grate on the ear or the feelings; have a jangling or discordant quality; clash.
• To receive a short, rattling, tremulous motion, as from an impulse; shake joltingly.
• To sound or tick in vibrating, as a pendulum; hence, to be marked off by regular vibrations or ticks.
• To speak or talk clatteringly or discordantly; haggle; dispute; quarrel.
• To make discordant.
• To impart a short, tremulous motion to; cause to shake or tremble; disturb.
• To make rough; roughen.
• noun An earthen or glass vessel of simple form, without handle or spout.
• noun The quantity contained in a jar; the contents of a jar.
• To drill by impact or percussion; use an impact drill or drill-jar upon.
• To shock or surprise (one) with some sudden or extraordinary remark, statement, or fact.
• noun A turn: used separately only in the occasional colloquial phrases on a jar, on the jar, usually ajar, on the turn; turned a little way, as a door or gate.
• noun A tool, used in drilling wells in rock, consisting of two long and flat links capable of sliding the one within the other, in order that the drill-bit may be loosened on the up stroke in case it has become jammed in the lock.

from the GNU version of the Collaborative International Dictionary of English.

• noun A turn.
• noun on the turn, ajar, as a door.
• noun A deep, broad-mouthed vessel of earthenware or glass, for holding fruit, preserves, etc., or for ornamental purposes
• noun The measure of what is contained in a jar
• noun See in the Vocabulary.
• intransitive verb To give forth a rudely quivering or tremulous sound; to sound harshly or discordantly.
• intransitive verb To act in opposition or disagreement; to clash; to interfere; to quarrel; to dispute.
• transitive verb To cause a short, tremulous motion of, to cause to tremble, as by a sudden shock or blow; to shake; to shock
• transitive verb obsolete To tick; to beat; to mark or tell off.
• noun A rattling, tremulous vibration or shock; a shake; a harsh sound; a discord
• noun Clash of interest or opinions; collision; discord; debate; slight disagreement.
• noun A regular vibration, as of a pendulum.
• noun In deep well boring, a device resembling two long chain links, for connecting a percussion drill to the rod or rope which works it, so that the drill is driven down by impact and is jerked loose when jammed.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A small, approximately cylindrical container for food, normally made of glass or clay.
• noun computing Java archive
• noun computing JAR: Tool to create compressed file archives.
• verb To knock or strike sharply.
• verb to shock or surprise.