hourly, monthly, weekly
full, half (both esp. BrE)
He has taken leave on half pay.

high
low, poor
workers on low pay

average
equal
equal pay for men and women

base (AmE), basic
gross
take-home
the average take-home pay of a manual worker

holiday (BrE), vacation (AmE)
maternity (BrE)
overtime
redundancy (BrE), severance (esp. AmE)
retirement (esp. AmE)
sick (esp. BrE), sickness (BrE)
back
The workers are demanding their back pay.

merit (AmE), performance (esp. BrE), performance-related (esp. BrE)
bonus (esp. AmE), incentive (AmE)

level, rate
The job offers good rates of pay and excellent conditions.

earn, get, receive
give sb
cut, dock, slash
He cut management pay by 15%.

boost, double, increase, raise
He doubled his pay by accepting bribes.

day
cheque (BrE) (paycheck in AmE), packet (BrE)
the money in my weekly pay packet

package
His pay package including bonuses was worth at least $12 million.

slip (BrE), stub (AmE)
hike (esp. AmE), increase, raise (AmE), rise (BrE)
cut
freeze (esp. BrE)
claim, demand (both esp. BrE)
bargaining, negotiations (both BrE)
agreement, award, deal, offer, settlement (all esp. BrE)
dispute (esp. BrE), strike (BrE)
levels, rates
industrial unrest over pay levels in the public sector

grade, scale, structure (esp. BrE)
He's at the top of his company's pay scale.

equity (esp. AmE), parity (BrE)
Women are still decades away from achieving pay equity with men.

differential, disparity

on … pay
Women are eligible for 18 weeks maternity leave on full pay.

with pay
a day off with pay

without pay
He has been suspended without pay.

a cut in pay, an increase in pay, a reduction in pay

handsomely, well
She pays her workers very well.

dearly (figurative)
He will pay dearly for what he did.

gladly
I would gladly pay for the benefits such a tax would bring.

typically
Clients typically pay about $2 400 per month.

up
I had a hard time getting him to pay up.

have to, must
be able to, can, can afford to
help for those who are genuinely not able to pay

be unable to, cannot, can't afford to
Protesters chanted ‘Can't pay! Won't pay!’

expect (sb) to
You can expect to pay £200 a night at this hotel.

be liable to (esp. BrE)
It is for the courts to decide who is liable to pay damages.

be ordered to, be required to
The company was ordered to pay the workers £5 000 in compensation each.

agree to, be prepared to, be willing to, offer to, promise to
fail to, neglect to
He was made bankrupt for failing to pay debts of over £2 million.

refuse to
help (to)
The revenue will be used to help pay for environmental improvements.

get sb to, make sb
If he had killed Caroline, then Mac was going to make him pay the price.

let sb
She wouldn't let me pay for my ticket.

for
How much did you pay for your new car?

to
We pay £200 a week to our landlord.

ability to pay
Taxation should be based on the ability to pay.

Pay is used with these nouns as the subject:
bank, consumer, job

Pay is used with these nouns as the object:
advance, arrears, attention, balance, bill, bonus, bribe, call, cash, charge, check, claim, commission, compensation, compliment, contribution, cost, creditor, damage, debt, deposit, difference, dividend, dowry, duty, employee, equivalent, expense, fare, fee, fine, fortune, instalment, insurance, interest, invoice, maintenance, mercenary, minimum, money, mortgage, penalty, penance, pension, postage, premium, ransom, rate, recompense, refund, regard, rent, respect, reward, royalty, salary, settlement, staff, subscription, subsidy, sum, supplement, support, surcharge, tariff, tax, toll, total, tribute, tuition, visit, wage, worker