#176.  Tendency.—­ N. tendency; aptness, aptitude; proneness,
proclivity, bent, turn, tone, bias, set, leaning to, predisposition, inclination, propensity, susceptibility; conatus[Lat], nisus[Lat]; liability &c. 177; quality, nature, temperament; idiocrasy[obs3], idiosyncrasy; cast, vein, grain; humor, mood; drift &c. (direction) 278; conduciveness, conducement[obs3]; applicability &c. (utility) 644; subservience &c. (instrumentality) 631. 
     V. tend, contribute, conduce, lead, dispose, incline, verge, bend to,
trend, affect, carry, redound to, bid fair to, gravitate towards; promote &c. (aid) 707. 
     Adj. tending &c. v.; conducive, working towards, in a fair way to,
calculated to; liable &c. 177; subservient &c. (instrumental) 631; useful &c. 644; subsidiary &c. (helping) 707. 
     Adv. for, whither.

     #177.  Liability.—­ N. liability, liableness[obs3]; possibility,
contingency; susceptivity[obs3], susceptibility, exposure. 
     V. be -liable &c. adj.; incur, lay oneself open to; run the chance,
stand a chance; lie under, expose oneself to, open a door to. 
     Adj. liable, subject; in danger &c. 665; open to, exposed to,
obnoxious to; answerable; unexempt from[obs3]; apt to; dependent on; incident to.
     contingent, incidental, possible, on the cards, within range of, at
the mercy of.

% 5.  Combinations of Causes %

     #178.  Concurrence.—­ N. concurrence, cooperation, coagency[obs3];
union; agreement &c. 23; consilience[obs3]; consent, coincidence &c. (assent) 488; alliance; concert, additivity, synergy &c. 709; partnership &c. 712.
     common cause. 
     V. concur, conduce, conspire, contribute; agree, unite; hang together,
pull together, join forces, make common cause. &c. (cooperate) 709; help to &c. (aid) 707.
     keep pace with, run parallel; go with, go along with, go hand in hand
with, coincide. 
     Adj. concurring &c. v.; concurrent, in alliance with, banded together,
of one mind, at one with, coinciding. 
     Adv. with one consent.

     #179.  Counteraction.—­ N. counteraction, opposition; contrariety &c.
14; antagonism, polarity; clashing &c. v.; collision, interference, inhibition, resistance, renitency, friction; reaction; retroaction &c. (recoil) 277; counterblast[obs3]; neutralization &c. (compensation) 30; vis inertiae[Lat]; check &c. (hindrance) 706.
     voluntary opposition &c. 708, voluntary resistance &c. 719; repression
&c. (restraint) 751.
     opposites, action and reaction, yang and yin, yang-yin (contrariety)
14. 
     V. counteract; run counter, clash, cross; interfere with, conflict
with; contravene; jostle; go against, run against, beat against, militate against; stultify; antagonize, block, oppose &c. 708; traverse; withstand &c. (resist) 719; hinder &c. 706; repress &c. (restrain) 751; react &c. (recoil) 277.
     undo, neutralize; counterpoise