Energy of body and mind, enthusiasm.
Common sense, initiative, resourcefulness.
Boldness of enterprise; aggressiveness or initiative.
One's innermost feelings.
The center of the field.
Courage; determination.
Content, substance.
The entrails or contents of the abdomen.
The essential, core parts.
The ring in the gambling game two-up in which the spinner operates; the centre.
To show determination or courage (especially in the combination guts out).
To eat greedily.