sob

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

• intransitive verb To weep aloud with convulsive gasping; cry uncontrollably. synonym: cry.
• intransitive verb To make a sound resembling that of loud weeping.
• intransitive verb To utter with sobs.
• intransitive verb To put or bring (oneself) into a specified condition by sobbing.
• noun The act or sound of sobbing.

from The Century Dictionary.

• To sigh strongly with a sudden heaving of the breast or a kind of convulsive motion; weep with convulsive catchings of the breath.
• To make a sound resembling a sob.
• To give forth or utter with sobs; particularly, to say with sobbing.
• In lute-playing, to deaden the tone of by damping the string, or relaxing the finger by which it is stopped.
• To frighten.
• To sup; suck up.
• To sop; soak with a liquid.
• noun A convulsive heaving of the breast and inspiration of breath, under the impulse of painful emotion, and accompanied with weeping; a strong or convulsive sigh. It consists of a short, convulsive, somewhat noisy respiratory movement.
• noun A sound resembling the sobbing of a human being.

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

• intransitive verb To sigh with a sudden heaving of the breast, or with a kind of convulsive motion; to sigh with tears, and with a convulsive drawing in of the breath.
• transitive verb obsolete To soak.
• noun The act of sobbing; a convulsive sigh, or inspiration of the breath, as in sorrow.
• noun Any sorrowful cry or sound.

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

• noun a cry with a short, sudden expulsion of breath.
• verb intransitive to weep with convulsive gasps.
• verb transitive to say (something) while sobbing.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb weep convulsively
• noun insulting terms of address for people who are stupid or irritating or ridiculous
• noun a dyspneic condition
• noun convulsive gasp made while weeping