Informal, Formal, Synonym words IELTS writing

	A	B	C	D
1	Informal (Mind context)	Neutral (Speaking)	Formal (Writing)	Comments on Formal

2	A bit		A little
3	A Bit		A Little
4	A lot of	Many / much	Numerous
5	Achieve		Accomplish
6	Acquire		Obtain
7	Adequate		Sufficient
8	Advantageous		Beneficial
9	Afraid		Fearful
10	Again & Again		Repeatedly
11	Also		In addition, additionally
12	Annual		Yearly
13	Anyways		Nevertheless
14	Apparent		Obvious
15	Appearance		Look
16	Applicable		Relevant
17	Arrangement		Agreement
18	Ask for		Request
19	Ask Out		Invite
20	Assurance		Guarantee
21	At first		Initially
22	At once		Immediately
23	Attainment		Achievement
24	Away		Absent
25	Bad		Negative
26	Beat up		Assault
27	Beginning		Start
28	Belongings		Possessions
29	Better		Improved
30	Big/Large		Considerable, Enormous
31	Block		Undermine
32	Blow up		Explode
33	Book		Reserve
34	Boss		Employer
35	Brave		Courageous
36	Break down		Fail/Collapse
37	Break off		Suspend/adjourn
38	Break out		Erupt	извергаться, прорезываться
39	Bright/smart		Intelligent
40	Bring in		Introduce
41	Build		Construct
42	But		However
43	Buy		Purchase
44	Call off		Cancel
45	Call on		Visit
46	Catch up		Understand
47	Categorize		Classify
48	Chance		Opportunity
49	Characteristic		Trait
50	Cheap		Inexpensive
51	Check		Verify
52	Childish		Immature, Infantile
53	Choice		Option
54	Choose		Select
55	Circumstance		Situation
56	Clear		Transparent
57	Climb		Ascend
58	Coincide		Agree
59	Come after		Follow
60	Come in		Enter
61	Come up		to Reach/attain
62	Come up to		Reach/attain
63	Cops	Police	Law enforcement
64	Crooks	Criminals	Offenders, Lawbreakers
65	Dad		Father
66	Danger		Peril
67	Deal with		Manage, Handle
68	Death		Demise
69	Delay	Postpone
70	Demand		Request
71	Dirty/ polluted		Contaminated
72	Drop out of		Withdraw (from)
73	Eager		Avid
74	Ease		Facilitate
75	Empty		Vacant
76	End		Terminate/ Finish
77	Enjoyment		Gratification
78	Enough		Sufficient
79	Expect		Anticipate
80	Explain		Disclose
81	Fall out		Quarrel
82	Fight		Combat	fighting between armed forces; take action to reduce or prevent (something bad or undesirable).
83	Find out		Learn/Discover
84	Folks	Family	Relatives
85	Free		Liberate
86	Free (verb)		Release
87	Friendly		Amiable
88	Funny		Humorous, amusing
89	Get		Receive
90	Get away		Elude
91	Get by		Survive
92	Get out		Escape
93	Give		Donate
94	Give		Donate, Provide
95	Give out		Distribute
96	Give up		Quit
97	Go		Depart
98	Go after		Pursue
99	Go against		Oppose
100	Go ahead		Proceed