long
Gorillas have a very long reach.

have

beyond (sb/sth's) reach
The latch was just beyond her reach.

in (sb/sth's) reach, within (sb/sth's) reach
The riverbank was almost in reach.
There was a knife within his reach.
a beach resort within reach of Bangkok
The house is within easy reach of the train station.

out of sb/sth's reach
Keep all medicines out of reach of children.

within arm's reach
I always keep my phone within arm's reach.

vast, wide
The organization has a wide reach.

global
The global reach of the Internet has exceeded what anyone could have predicted.

geographic, geographical
The business is looking at ways to extend its geographic reach.

have
The company has a worldwide reach.

broaden, expand, extend, increase
Humans have extended their reach into space.

limit
As an artist, his reach was not limited to Britain.

beyond (sb/sth's) reach
He fled abroad, beyond the reach of German prosecutors.

in sb/sth's reach, within sb/sth's reach
Our $30 000 target is now well within our reach.

out of sb/sth's reach
The price puts it out of the reach of most people.

far, farthest, furthest
nether, outer, outermost, upper, uppermost
the upper reaches of the river
the upper reaches of the music charts (figurative)

northern, southern, etc.
northernmost, southernmost, etc.

explore
He dreamed of exploring the outermost reaches of space.

reach of
the farthest reaches of our universe

eventually, finally
easily, quickly
The cost can easily reach six figures.

almost, nearly
The city's population had nearly reached a million by 1920.

barely
He had barely reached the door when he collapsed.

attempt to, try to
be expected to, be likely to, expect to
Profits are expected to reach £2 billion this year.

be unlikely to
be able to
be unable to, fail to
The jury was unable to reach a verdict.

gingerly, hesitantly, tentatively
slowly
Slowly he reached out and picked up the gun.

automatically, instinctively
He instinctively reached for his camera.

blindly
She reached blindly for the light switch.

across, down, forward, out, over
He reached out gingerly to touch it.
A hand reached down to help her up the ladder.

for
She reached for the telephone and picked it up.

inside
I reached inside my pocket for a pen.

into
He reached into his bag and took out a book.

easily
She had arranged her desk so that she could reach everything easily.

almost, nearly
Her skirt almost reached the ground.

halfway
His hair reached halfway to his waist.

can
I can't reach the top shelf.

Reach is used with these nouns as the subject:
elevator, expedition, inflation, letter, message, news, population, procession, receipt, sale, stock, temperature, toll, train, troops, turnover, unemployment

Reach is used with these nouns as the object:
accommodation, accord, adolescence, adulthood, age, agreement, altitude, audience, birthday, boiling point, border, bottom, ceiling, climax, coast, completion, compromise, conclusion, consensus, consumer, crescendo, crest, crossroads, culmination, deadlock, deal, decision, degree, depth, destination, diagnosis, ear, earth, edge, end, exit, expectation, expression, extent, extreme, figure, final, finale, floor, freezing, frontier, fruition, goal, grade, ground, height, high, highway, impasse, judgement, land, length, level, limit, low, mainstream, mark, market, maturity, maximum, menopause, middle age, milestone, minimum, moon, objective, office, old age, orbit, orgasm, outskirts, peak, per cent, perfection, phase, pinnacle, pitch, plateau, point, port, position, potential, profitability, proportion, puberty, quota, rank, resolution, retirement, room, round, safety, saturation, scene, settlement, shelf, shore, showroom, size, solution, speed, spot, stage, stalemate, standard, state, stop, summit, surface, target, teens, temperature, threshold, top, total, trough, truce, turning point, understanding, valley, velocity, verdict, viewer, watershed